Aviom A640 Users Guide

User Guide

Page iAviom A640 Personal Mixer User Guide

READ THIS FIRST

Important Safety Instructions

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
two blades with one wider than the other. A grounding type plug has two blades and a third
grounding prong. The wide blade or third prong are provided for your safety. If the provided plug
does not fit your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience
receptacles, and the point where they exit the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with
the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to
avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified personnel. Servicing is required when the apparatus has been
damaged in any way, such as when the power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.

15. No on/off power switches are included in the system. The external power supply should be used to
control power to an Aviom device. This power supply should remain readily operable.

16. The solid line over dashed line symbol ( ) indicates that the input voltage must be a DC
voltage.

17. The box within a box symbol ( ) indicates that the external power supply is double insulated.

i

WARNING!

! !

TO REDUCE THE DANGER OF ELECTRICAL SHOCK DO NOT REMOVE COVERS.

NO USER SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY.

To reduce the risk of fire or electrical shock, do not expose this product to rain or other types of moisture.

To avoid the hazard of electrical shock, do not handle the power cord with wet hands.

Replace fuse with same type and rating.

Operating Temperature: 0˚C to 50˚C (32˚F to 122˚F)

Risque de choc électrique – ne pas ouvrir. Pour réduire le risque de feu ou de choc électrique, ne pas exposer cet équipement
à la pluie ou la moisissure. Pour réduire le risque de choc électrique, ne pas retirer le couvercle. Pièces non remplaçables par
l’utilisateur. Confier la réparation à une personne qualifiée. Attention – utiliser seulement un fusible de rechange de même type.

Cet appareil est conforme à la section 15 de la norme FCC. Son fonctionnement est soumis aux conditions suivantes : (1) cet
équipement ne doit pas causer des interférences nocives, et (2) cet équipement doit accepter toute interférence captée incluant les
interférences pouvant causer des opérations indésirables.

Cet appareil numérique de Classe B est conforme à la norme NMB-003 du Canada.

IMPORTANT:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications to the product not expressly approved by Aviom, Inc. could void the user’s FCC
authority to operate the equipment.

CAUTION:

• Using any audio system at high volume levels can cause
permanent damage to your hearing.

• Set your system volume as low as possible.

• Avoid prolonged exposure to excessive sound pressure levels.

ii

Certifications

EMC:
EN 55032:2015/AMD1:2019
CISPR 32:2015/ AMD1:2019
ICES-003, Issue 7, October 2020
FCC 47 CFR Part 15: 2021
CISPR 35 Edition 1.0 2016-08

Safety:
UL 623 68 -1:2019 Ed . 3
CSA C22.2#62368-1:2019 Ed.3

ETL/cETL Listed and RoHS Compliant

Pb

Pb-Free

Notice of Rights

All rights reserved. No part of this document may be reproduced or transmitted in any form or by any
means—electronic, mechanical, photocopy, recording, or otherwise—without written permission of
Aviom, Inc.

Trademarks

Aviom, A-Net, the A-Net icon, Pro16, Pro16e, Enhance, and Network Mix Back are trademarks of Aviom, Inc.
All other trademarks are the property of their respective owners.

© Aviom, Inc. All rights reserved.

Information is subject to change without notice.

Aviom products are designed and manufactured in the USA.

iii

Aviom, Inc. Limited Warranty

Aviom, Inc. warrants this product against defects in materials and workmanship for a period of one year
from the date of the original retail purchase.

This warranty does not apply if the equipment has been damaged due to misuse, abuse, accident, or
problems with electrical power. The warranty also does not apply if the product has been opened or
modified in any way; if the product serial number has been damaged, modified, or removed; or if the
original Quality Assurance label has been damaged, modified, or removed.

If a defect is discovered, first write or call Aviom, Inc. to obtain a Return Authorization number. No service
will be performed on any product returned without prior authorization. Aviom, Inc. will, at its option, repair
or replace the product at no charge to you. The product must be returned during the warranty period,
with transportation charges prepaid to Aviom, Inc., 1157 Phoenixville Pike, Suite 201, West Chester, PA

19380. You must use the product’s original packing materials for shipment. Shipments should be insured
for the value of the product. Include your name, address, phone number, description of the problem, and
copy of the original bill of sale with the shipment. The Return Authorization number should be written on
the outside of the box.

THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS. YOU MAY HAVE OTHER RIGHTS, WHICH
VARY FROM STATE TO STATE (OR JURISDICTION TO JURISDICTION). AVIOM’S RESPONSIBILITY FOR
MALFUNCTIONS AND DEFECTS IN HARDWARE IS LIMITED TO REPAIR AND REPLACEMENT AS SET FORTH
IN THIS LIMITED WARRANTY STATEMENT. ALL EXPRESS AND IMPLIED WARRANTIES FOR THE PRODUCT,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE WARRANTY PERIOD SET FORTH ABOVE. NO
WARRANTIES, WHETHER EXPRESS OR IMPLIED, WILL APPLY AFTER SUCH PERIOD.

AVIOM, INC. DOES NOT ACCEPT LIABILITY BEYOND THE REMEDIES SET FORTH IN THIS LIMITED WARRANTY
DOCUMENT. AVIOM, INC.’S LIABILITY IS LIMITED TO THE REPAIR OR REPLACEMENT, AT OUR OPTION, OF
ANY DEFECTIVE PRODUCT, AND SHALL IN NO EVENT INCLUDE INCIDENTAL OR CONSEQUENTIAL DAMAGES
OF ANY KIND.

SOME STATES DO NOT ALLOW EXCLUSIONS OR LIMITATION OF IMPLIED WARRANTIES OR LIABILITY FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU.

iv

Warranty Information

Please record the following information for future reference:

Your Authorized Aviom Dealer:

Name:

Address:

Phone:

Serial Numbers of Your Aviom Products:

Date of Purchase:

Your Authorized Aviom Dealer is your primary source for service and support. The information recorded
above will be helpful in communicating with your Authorized Aviom Dealer should you need to contact
Aviom Customer Service. If you have any questions concerning the use of this unit, please contact your
Authorized Aviom Dealer first. For additional technical support, or to find the name of the nearest
Authorized Aviom Repair Station, check the Aviom web site at www.aviom.com.

To fulfill warranty requirements, your Aviom product should be serviced only at an authorized Aviom
service center. The Aviom serial number label must appear on the outside of the unit, or the Aviom
warranty is void.

This manual and its contents are copyrighted by Aviom, Inc. All rights are reserved by Aviom, Inc. This
document may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any
electronic medium or machine-readable form without prior written consent from Aviom, Inc.

The software and/or firmware contained within Aviom products is copyrighted and all rights are reserved
by Aviom, Inc.

Although every effort has been made to ensure the accuracy of the text and illustrations in this manual, no
guarantee is made or implied as to the accuracy of the information contained within.

v

Table of Contents

Important Safety Instructions . . . . . . . . . . . . . . . . . i

Certications . . . . . . . . . . . . . . . . . . . . . . . . . iii

Aviom, Inc. Limited Warranty . . . . . . . . . . . . . . . . . iv

A640 Personal Mixer . . . . . . . . . . . . . . . . . . . . . 5

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

About A-Net . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Conventions Used in this Document . . . . . . . . . . . . . . . . 8

Using Personal Mixers . . . . . . . . . . . . . . . . . . . . . 8

Cat-5 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . 8

A-Net Distributors . . . . . . . . . . . . . . . . . . . . . . . 8

Button Presses. . . . . . . . . . . . . . . . . . . . . . . . . 8

Network Channels and Slots . . . . . . . . . . . . . . . . . . 8

A640 Front Panel Interface . . . . . . . . . . . . . . . . . . 9

A-Net LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Save Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Recall Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

View Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Mixer Setup Button . . . . . . . . . . . . . . . . . . . . . . . . . 12

Aux Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Master Volume . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Master EQ Button . . . . . . . . . . . . . . . . . . . . . . . . . 13

Color LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Left/Right Rotary Encoders . . . . . . . . . . . . . . . . . . . . . 14

Intercom Button . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Ambience Button . . . . . . . . . . . . . . . . . . . . . . . . . 15

Built-in Ambience Mic . . . . . . . . . . . . . . . . . . . . . . . 15

Assignable Soft Buttons . . . . . . . . . . . . . . . . . . . . . . 16

Trim All Function . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Channel Label Strip . . . . . . . . . . . . . . . . . . . . . . . . . 17

Channel Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Channel Active LEDs . . . . . . . . . . . . . . . . . . . . . . . . 18

Channel Mute LEDs . . . . . . . . . . . . . . . . . . . . . . . . 18

Favorite Button . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

A640 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . 20

Stereo Audio Outputs . . . . . . . . . . . . . . . . . . . . . . . 20

XLR Mono Output . . . . . . . . . . . . . . . . . . . . . . . . . 20

USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

A-Net In Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

DC Power Connector . . . . . . . . . . . . . . . . . . . . . . . . 22

Page 1Aviom A640 Personal Mixer User Guide

Creating a Monitor Mix . . . . . . . . . . . . . . . . . . . . 23

A640 Mix Views . . . . . . . . . . . . . . . . . . . . . . . . . . 23

D800 Sync Indicator . . . . . . . . . . . . . . . . . . . . . . 23

Common Editing Functions . . . . . . . . . . . . . . . . . . . . 24

Solo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Additive Solo . . . . . . . . . . . . . . . . . . . . . . . . . 25

Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Editing a Group . . . . . . . . . . . . . . . . . . . . . . . . 28

Editing in Channel View . . . . . . . . . . . . . . . . . . . . . . 31

Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Stereo Pan. . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Tone Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

EFX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Editing in Mix View . . . . . . . . . . . . . . . . . . . . . . . . . 34

Editing in Names View . . . . . . . . . . . . . . . . . . . . . . . 36

Intercom Setup . . . . . . . . . . . . . . . . . . . . . . . . 38

Transmitting and Receiving Intercom Audio . . . . . . . . . . . . . 39

Transmitting Intercom Audio . . . . . . . . . . . . . . . . . . 39

Receiving Intercom Audio . . . . . . . . . . . . . . . . . . . 40

Intercom Modes . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Momentary . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Latched . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

How The Intercom Works . . . . . . . . . . . . . . . . . . . . . . 43

Using the Local Mic . . . . . . . . . . . . . . . . . . . . . . 43

Using an External Mic . . . . . . . . . . . . . . . . . . . . . 47

Using Multiple External Mics . . . . . . . . . . . . . . . . . . 48

Intercom Audio and Legacy Devices . . . . . . . . . . . . . . . . 48

A-16II Personal Mixer . . . . . . . . . . . . . . . . . . . . . 49

A320 Personal Mixer . . . . . . . . . . . . . . . . . . . . . 49

A360 Personal Mixer . . . . . . . . . . . . . . . . . . . . . . 49

Mixer Setup Menu. . . . . . . . . . . . . . . . . . . . . . . 50

File Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

USB Data Port . . . . . . . . . . . . . . . . . . . . . . . . . 52

Save a Configuration . . . . . . . . . . . . . . . . . . . . . 52

File Name Rules . . . . . . . . . . . . . . . . . . . . . . . . 54

Disk Full Warning . . . . . . . . . . . . . . . . . . . . . . . 54

Updating Configurations . . . . . . . . . . . . . . . . . . . 55

Recall a Configuration . . . . . . . . . . . . . . . . . . . . . 55

Import an A360 Configuration . . . . . . . . . . . . . . . . . 56

Check for A640 Firmware Updates . . . . . . . . . . . . . . . 58

Firmware Files . . . . . . . . . . . . . . . . . . . . . . . . . 58

Updating the A640 Firmware . . . . . . . . . . . . . . . . . 59

Edit Channel Names . . . . . . . . . . . . . . . . . . . . . . . . 60

Manual Edit . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Channel Names Using Dante . . . . . . . . . . . . . . . . . . 61

Page 2Aviom A640 Personal Mixer User Guide

Loading Channel Names One Time from a D800-Dante . . . . . 62

Loading Dante Channel Names In Sync . . . . . . . . . . . . . 63

Dante Channel Names and Stereo Links . . . . . . . . . . . . 64

Restore Default Names . . . . . . . . . . . . . . . . . . . . 64

Mono vs. Stereo . . . . . . . . . . . . . . . . . . . . . . . . 67

Channel Mapping Errors . . . . . . . . . . . . . . . . . . . . 68

Disable an A640 Mix Channel Button . . . . . . . . . . . . . . 69

Aux Mix Audio Source . . . . . . . . . . . . . . . . . . . . . 71

Aux Mix Channel Settings . . . . . . . . . . . . . . . . . . . 71

Intercom Audio Source . . . . . . . . . . . . . . . . . . . . 73

Intercom Broadcast Slot . . . . . . . . . . . . . . . . . . . . 74

Legacy Devices . . . . . . . . . . . . . . . . . . . . . . . . 77

Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . 78

Pro16 Mode - 16 mono channels . . . . . . . . . . . . . . . . 78

Default Mode - 16 stereo channels . . . . . . . . . . . . . . . 79

Mono vs. Stereo Channels . . . . . . . . . . . . . . . . . . . 80

Favorite Button . . . . . . . . . . . . . . . . . . . . . . . . 82

Custom Mode . . . . . . . . . . . . . . . . . . . . . . . . . 82

Input List . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Clear Current Mix . . . . . . . . . . . . . . . . . . . . . . . . . . 83

LCD Backlight Level . . . . . . . . . . . . . . . . . . . . . . . . 85

Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Restore Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . 87

About This Mixer . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Personal Mixing System Setup . . . . . . . . . . . . . . . . 89

Adding the A640 to a 16-Channel System . . . . . . . . . . . . . 89

Daisy chaining an A640 . . . . . . . . . . . . . . . . . . . . 92

Pro16e Personal Mixing Systems . . . . . . . . . . . . . . . . . . 92

Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Slot Range Setup . . . . . . . . . . . . . . . . . . . . . . . 93

Console Card Inputs . . . . . . . . . . . . . . . . . . . . . . . . 94

Connecting Monitoring Devices . . . . . . . . . . . . . . . . 95

Connecting to the Stereo Mix Output . . . . . . . . . . . . . . . . 95

Headphones and Earbuds . . . . . . . . . . . . . . . . . . . 95

Stereo Wireless In-Ear Systems . . . . . . . . . . . . . . . . . 96

Stereo Speakers . . . . . . . . . . . . . . . . . . . . . . . . 97

Mono Speakers . . . . . . . . . . . . . . . . . . . . . . . . 98

Subwoofers . . . . . . . . . . . . . . . . . . . . . . . . . 99

Tactile Shaker Devices . . . . . . . . . . . . . . . . . . . . . 100

Analog Cabling . . . . . . . . . . . . . . . . . . . . . . . . 102

Dante Patching . . . . . . . . . . . . . . . . . . . . . . . . 102

Network Channels (Slots) . . . . . . . . . . . . . . . . . . . 105

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Page 3Aviom A640 Personal Mixer User Guide

Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Network Channels (Slots) . . . . . . . . . . . . . . . . . . . 105

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Network Channels (Slots) . . . . . . . . . . . . . . . . . . . 105

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Network Channels (Slots) . . . . . . . . . . . . . . . . . . . 105

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Specications . . . . . . . . . . . . . . . . . . . . . . . . 106

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Cat-5 Cable Pinout . . . . . . . . . . . . . . . . . . . . . . 109

Page 4Aviom A640 Personal Mixer User Guide

A640 Personal Mixer

Thank you for purchasing the Aviom A640 Personal Mixer. This User Guide is
designed to familiarize you with your new product’s features and to have your
personal mixing system up and running as quickly as possible.

View Mixer Setup

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Channel

Mix

Names

Aux Volume Master Volume

Master EQ

Trim All

Features

The A640 Personal Mixer is part of Aviom’s Pro16® Series of products, powered by the high speed, low
latency A-Net® digital audio transport protocol. It can be combined with Pro16 and Pro16e™ analog
input devices, digital console cards, and/or Dante-based systems to create personal mixing systems
for applications in live performance, recording, broadcast, etc.

Page 5Aviom A640 Personal Mixer User Guide

A640 Personal Mixer features:

• Advanced 36-channel mix engine

• 16 mono or stereo standard mix channels

• Programmable channel selection from up to 64 sources in an Aviom network

• Three mixer modes allow the A640 to adapt to any size Aviom monitoring system

• Favorite Channel

• Ambience channel with onboard mic

• Color LCD

• Per-channel Volume, Treble, Bass, Eects, and Pan

• Three-band Master EQ with Enhance™, optimized for in-ear monitors

• Intercom function to communicate with other A640 users (requires a D800)

• 1/4-inch and 1/8-inch stereo outputs

• XLR mono Aux Mix output with custom channel selection

• 16 Mix Presets

• USB storage for saving and loading mixer presets and congurations

• Seamless integration with current and legacy Aviom personal mixing systems

Options for your personal mixing system include:

• MT-1a Mic Stand Mount

• Cat-5e/Cat-6 UTP interconnect cables

• PS-120/PS-240 Power Supply

Compatibility

The A640 Personal Mixer is compatible with Pro16 A-Net devices (maximum 16 source channels) and
Pro16e A-Net devices (up to 64 source channels) as detailed below.

The A-Net Out from the following devices may be connected to the A640 Personal Mixer’s A-Net In
port:

• AN-16/i v.2 Input Module

• Aviom16/o-Y1 A-Net Card for Yamaha® devices

• Third-Party Pro16 A-Net digital console cards

• D800 and D800-Dante A-Net Distributors

• D400 and D400-Dante A-Net Distributors

• AN-16/o v.4 Output Module

Legacy Products:

• AN-16/i Input Module

• AN-16/i-M Mic Input Module

• A-16D and A-16D Pro A-Net Distributors

• A-16II Personal Mixer

• A-16R Rack-mount Personal Mixer

• AN-16/o Output Module

Page 6Aviom A640 Personal Mixer User Guide

Power Supplies

The A640 Personal Mixer is designed to be connected to an Aviom A-Net Distributor such as the D800
or D400 when creating a personal mixing system. A-Net Distributors provide parallel A-Net digital
audio data connections for up to eight Personal Mixers as well as the DC power required to operate
them.

The A640 can also be powered with an optional DC power supply, the PS-120, which is a universal
switching type supply capable of working with voltages from 90 to 240 volts AC. The external power
supply is also available in international versions, sold as the PS-240.

Should you need to add or replace a power supply, we recommend using only a power supply that
meets the following specications.

Type Switching

Input Voltage 90-240 volts 50/60Hz 30VA

Output 24Vdc 0.5A

Polarity Outer = negative; Inner = positive

Plug Size 2 mm

Note that the polarity of the plug found on the DC power supply needs to match that of the power
supply specied to work with your Aviom equipment. Aviom products use a center positive power
supply. The outer contact of the 2mm plug is negative, the inner contact is positive.

About A-Net

A-Net® is a proprietary high-speed data transmission protocol developed by Aviom, capable of
sending and receiving high-quality digital audio using readily available Cat-5 cables.

A-Net is based on the physical layer of Ethernet, a Local Area Network (or LAN) technology. This
provides A-Net with a mature and robust base on which to build. However, it is important to note
that A-Net devices are not compatible with Ethernet devices.

Some of the benets of using A-Net to transmit digital audio are:

• Virtually no latency; analog in to analog out is always less than one millisecond

• No ground loops

• Easy cabling using readily available components

• An unlimited number of A-Net devices can be used in a system

• Ease in spanning long distances between system components

There are two versions of Pro16 A-Net: the original Pro16 A-Net signal carries sixteen channels of
digital data while the enhanced Pro16e® version of A-Net is capable of carrying up to 64 channels of
digital audio data. Like standard Pro16 A-Net, Pro16e is a point-to-point digital audio protocol.

Page 7Aviom A640 Personal Mixer User Guide

Conventions Used in this Document

Using Personal Mixers

When referring to the use of Aviom Personal Mixers in a personal mixing system in general, the term
Personal Mixer is used to describe a case where an A640 Personal Mixer, A360 Personal Mixer, A320
Personal Mixer, or A-16II Personal Mixer can be used.

Cat-5 Cables

In most cases unshielded Cat-5e, Cat-6, and Cat-6e UTP (Unshielded Twisted Pair) cables can be
interchanged. When speaking about interconnections between components in a system, the term
Cat-5 is used generically to indicate the use of any of the applicable cable types.

A-Net Distributors

The D800, D800-Dante, D400, D400-Dante, A-16D and A-16D Pro A-Net Distributors are referred to
generically as A-Net Distributors. A-Net Distributors are used to copy an A-Net digital signal and split it
into multiple copies so that Personal Mixers may be connected in parallel.

Button Presses

When instructed to press a specic button on the A640 Personal Mixer, a special font style is used. For
example, “Press the Vi ew button.”

Network Channels and Slots

An Aviom A-Net digital audio network can transport up to 64 audio sources to be used by the
Personal Mixers connected to it. Each of the 64 network channels in the A-Net network is referred
to as a Slot. Each of the 64 Slots in an A-Net network is always available whether audio has been
assigned to it or not. The terms network channel and Slot are used interchangeably in this document.

Page 8Aviom A640 Personal Mixer User Guide

A640 Front Panel Interface

The A640 Personal Mixer's front panel controls and features are described below.

1

Save Recall

3

12

15

4

16

View Mixer Setup

2

Signal/Clip

10 10

AmbienceIntercom

13

17

18

Channel

Mix

Names

5

14

13

7 8

6

Aux Volume Master Volume

11

Trim All

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Master EQ

9

19

Function Function

1 A-Net LED 11 Color Liquid Crystal Display (LCD)
2 Signal/Clip LED 12 Intercom Button
3 Save Button 13 Ambience Button & Built-in Ambience Mic
4 Recall Button 14 Assignable Soft Buttons & Trim All function
5 View Button 15 Channel Label Strip
6 Mixer Setup Button 16 Channel Buttons
7 Aux Volume 17 Channel Active LEDs
8 Master Volume 18 Channel Mute LEDs
9 Master EQ Button 19 Favorite Button

10 Left/Right Rotary Encoders

Page 9Aviom A640 Personal Mixer User Guide

A-Net LED

Aux Volume Master Volume

Master EQ

Channel

Mix

Names

Trim All

Mixer Setup

The A-Net LED lights whenever a valid digital Pro16 or Pro16e A-Net signal is connected to the A640.
When the legacy 16-channel Pro16 version of A-Net is connected, the A-Net LED lights green; when
the enhanced (up to) 64-channel Pro16e version of A-Net is connected, the A-Net LED lights blue.

Signal/Clip LED

The A640 includes custom circuitry to maximize mix headroom and minimize clipping in the digital
domain. A bi-color Signal/Clip LED is provided to help maintain a high delity, distortion-free mix.
The LED lights green under normal circumstances. As channel mix levels begin to increase, peaks
(especially those from percussive sources) will begin to light the red LED to indicate that some
clipping has started to occur.

When the red LED is on frequently, this is an indication that your mix headroom is being
compromised. Turning down the Master Volume knob will not reduce clipping or eliminate distortion
in this case; the Master Volume changes the output level after the digital mix has already been
created. The solution is to use the Trim All function which lowers all channel mix volumes uniformly.

Save Button

The A640 Personal Mixer can save and recall sixteen mix presets in its onboard memory. The A640's
sixteen mix channel buttons are used as the preset memory locations. Press the SaVe button
followed by one of the mix channel buttons 1-16 to save the current settings as a mix preset to that
location.

View

Signal/Clip

Save Recall

AmbienceIntercom

Save and Recall buttons

Mix Presets 1-16 store the following information:

• Mixer Mode (Pro16, Default, or Custom)

• Settings for each channel:

Page 10Aviom A640 Personal Mixer User Guide

ཌྷ Volume

Aux Volume Master Volume

Master EQ

ཌྷ Mute status
ཌྷ Pan for mono and stereo channels
ཌྷ Treble boost amount
ཌྷ Bass boost amount
ཌྷ EFX level

• Last selected channel 1-16, or 1-17 in Custom mode

• Which channel is mapped to the Favorite button (Pro16 and Default modes only)

• Master EQ Bass, Treble, and Enhance amounts

• Ambience On/O status

• Ambience volume

• Intercom Volume and audio source

• Aux Out source (Main Mix or Aux Mix)

• Aux Mix channel On/O selections

• Group 1-4 settings

• The last View screen displayed

• Current Stereo Link values for all 64 Slots from the A-Net network

Recall Button

The Re call button is used to load one of the sixteen saved mix presets into memory. Press the

Re call button followed by the channel button that corresponds to the mix preset you wish to load.

The Mixer Mode (Pro16, Default, or Custom) saved within the preset must
match the current Mixer Mode in order to load the mix preset.

An error message is displayed if you attempt to load a mix preset whose settings do not match the
current Mixer Mode.

View Button

The A640’s built-in display can show your mix settings in one of three views—Channel View, Mix
View, or Names View.

View Mixer Setup

Channel

Mix

Names

Page 11Aviom A640 Personal Mixer User Guide

Cycle through the three views at any time while mixing by pressing the dedicated View button found
above the display.

(L/R) Channel, Mix, and Names views

See "A640 Mix Views" on page 23 for a detailed explanation of the Views and their features.

Mixer Setup Button

Pressing the dedicated MixeR Setu p button at the top of the A640 interface opens the Mixer Setup
menu which provides access to the A640 Personal Mixer’s customizable settings and storage options.
Each function in the list contains a Help page that provides a brief overview of the selected function’s
operation.

See "Mixer Setup Menu" on page 50 for complete information on all the functions and settings
available in the Mixer Setup menu.

Aux Volume

In addition to the stereo mix output, the A640 automatically generates a balanced line-level mono
mix that makes connecting a subwoofer, bass shaker, or powered speaker easy. The au x Volu Me
knob controls the level of the mono mix being sent to the Aux Out XLR jack on the rear panel.

The Aux Volume level is not saved in a mix preset or conguration.

Page 12Aviom A640 Personal Mixer User Guide

Mixer Setup

Aux Volume Master Volume

Master EQ

Aux Volume, Master Volume, and Master EQ

You can choose between using the mono version of the main mix or a customized set of channels.
See page 71 to learn more about setting up and using the Aux Mix.

Master Volume

The Ma Ste R Vo lu Me knob controls the stereo mix level heard when using headphones or earbuds
connected to the A640's rear-panel 1/4- or 1/8-inch output jacks. The Master Volume is independent
of the Aux Volume. Its volume level is not saved in a mix preset or conguration.

Master EQ Button

The A640 Personal Mixer includes a global Master EQ section that is applied to the stereo mix being
sent to the 1/4-inch and 1/8-inch stereo headphone outputs as well as the XLR mono Aux Mix output
on the rear panel of the A640. Press the MaSte R eQ button to access its settings.

The A640 Master EQ section

Page 13Aviom A640 Personal Mixer User Guide

Press either encoder button to scroll to the Treble, Bass, or Enhance settings. Then turn the encoder

Aux Volume Master Volume

Master EQ

Channel

Mix

Names

View Mixer Setup

to change the amount. The Treble and Bass controls oer boost or cut. Scroll to the left of the center
indicator (the default setting) for a Treble or Bass cut; scroll to the right for a boost.

The Enhance circuit is a specially designed boost-only feature that adds a simultaneous bass and
treble boost at varying amounts as you increase its level. Its specially designed EQ curve is ideal for
in-ear monitoring. The default setting for Enhance is fully left (o). The settings for the Master EQ will
save with each mix preset created on the A640.

To return the Treble, Bass, and Enhance controls to their default values, press the Re Set button.

Color LCD

The central LCD (Liquid Crystal Display) shows the current mix in one of three Views. The LCD is also
used with the Master EQ and when setting up the A640 Personal Mixer using the options in the Mixer
Setup window.

Trim All

Color LCD as seen in Channel View

Left/Right Rotary Encoders

Two rotary encoders with push button switches are found on either side of the display. The encoders
are used for creating and editing a monitor mix, setting up an Aux Mix, creating a custom channel
map, setting up preferences in the Mixer Setup window, etc.

Page 14Aviom A640 Personal Mixer User Guide

Intercom Button

Aux Volume Master Volume

Master EQ

Channel

Mix

Names

View Mixer Setup

The A640 Personal Mixer's built-in intercom function allows you to communicate with other
performers without removing headphone or earbuds. It has two modes–momentary (push-to-talk)
and latched (hands-free). The Intercom can use either the built-in mic or an external mic assigned to
one of the 64 A-Net channels (Slots) on the Aviom network.

See page 38 for additional information on setting up and using the A640 Intercom.

Signal/Clip

Save Recall

AmbienceIntercom

Trim All

Intercom and Ambience buttons

Ambience Button

The Ambience button acts as an on/o switch for the built-in mic on the A640 Personal Mixer located
above the LCD. The Ambience mic can be used to add acoustic stage sound into your monitor mix for
a more realistic monitoring experience. Hold the aMbi ence button to set the level of the built-in mic.

The Ambience channel can also be used as a standard mono/stereo audio channel when conguring
an A640 in Custom mode. See "Channel Mapping" on page 65.

Built-in Ambience Mic

The Ambience mic itself is located at the top of the A640 Personal Mixer interface between the View
and Mixer Setup buttons. The internal mic can also be used with the Intercom feature.

Page 15Aviom A640 Personal Mixer User Guide

Assignable Soft Buttons

Aux Volume Master Volume

Master EQ

Channel

Mix

Names

View Mixer Setup

Below the A640's LCD are three assignable buttons that are used while mixing and for navigating in
the Mixer Setup window while setting up your A640 Personal Mixer. Whenever a function such as
Solo, Mute, or Group is available, the LCD will display the name of the function above the assignable
button. Press the associated soft button to use that feature.

Trim All

In the Channel View the soft buttons are assigned to Solo, Mute, and Group.

Trim All Function

The Trim All function is an easy way to turn down the volume of all channels in a mix (including the
Ambience mic channel) by a uniform amount with a single command. Use Trim All to clean up a mix if
the Signal/Clip LED is lit solid red, or if a channel being edited is already at its maximum level and you
need to continue to raise its volume relative to the other elements in the current mix.

Page 16Aviom A640 Personal Mixer User Guide

Aux Volume Master Volume

Master EQ

Channel

Mix

Names

Trim All

View Mixer Setup

Press both buttons to activate Trim All.

The Trim All function is activated by simultaneously pressing the two rightmost soft buttons beneath
the display. Each press of this button combination lowers the level of each channel in the mix by 3dB.

Trim All is available only when one of the three Views (Channel, Mix, or Names)
is active in the LCD.

Channel Label Strip

The channel label strip is designed to accept 1/2-inch (13 mm) wide artist’s tape or custom-made
printed labels. A channel label template is available at the end of this document and on the Aviom
website. Do not use permanent adhesives or tapes with your Aviom product.

Channel Buttons

The A640 Personal Mixer has 16 standard mix channel buttons that can host either a mono or stereo
network source (global stereo links are assigned at the network's input device with the stereo link
switches).

To select a channel and make it active for editing, press one of the 16 mix channel buttons; its green
LED will light. Make channel-level changes as needed using the Channel Volume, Pan, Treble, Bass,
Eects (EFX), and Mute controls. Use the Channel View for the most detailed editing.

While editing, the Solo function is also available to isolate the selected channel from the mix.

Page 17Aviom A640 Personal Mixer User Guide

Signal/Clip

Aux Volume Master Volume

Master EQ

Channel

Mix

Names

View Mixer Setup

14 15 16 Favorite

Save Recall

AmbienceIntercom

Trim All

1 2 3 4 5 6 7 8 9 10 11 12 13

Channel 7 is selected for editing, as seen in Channel View.

Channel Active LEDs

When a mix channel is selected for editing, the LED above its button will light in green. When a Group
is created, all channels that are members of the Group will have their Channel Active LEDs lit when
the Group is selected.

Channel Mute LEDs

Any number of mix channels can be muted within a mix. When a mix channel is muted, the LED
below its button will light in gold.

Favorite Button

When operating the A640 Personal Mixer in Pro16 or Default mode, any one of the 16 standard mixer
channel buttons may be assigned to the A640’s Favorite channel button, allowing easy access to a
frequently-used channel. Hold the FaVoRit e button and then press a channel button to assign it.

Whenever your Favorite channel is selected on the A640—either by pressing the numbered channel
button or the FaV oRi te button itself—it will be indicated in each View with the addition of FAV in the
top bar of the View next to the channel name.

Page 18Aviom A640 Personal Mixer User Guide

The Favorite channel’s assignment is saved as part of a preset and in a conguration.

Aux Volume Master Volume

Channel

Mix

Names

Master EQ

Favorite has been set to Chan. 13

Trim All

HOLDPRESS

8 9 10 11 12 13 14 15 16 Favorite

Setting channel 13 as the Favorite in Pro16 or Default modes

In Custom mode, the Favorite channel becomes a fully-assignable mono/stereo audio channel.
Assign any network audio source to the Favorite button (which is displayed as channel 17) by using
the Channel Mapping function found in the Mixer Setup window.

See "Mixer Mode" on page 77 for additional information about the A640 modes. See page 65 for
additional information about Channel Mapping.

Page 19Aviom A640 Personal Mixer User Guide

A640 Rear Panel

The A640 Personal Mixer's rear panel components are described below.

1

2

3

1 1/8-Inch Stereo Output
2 1/4-Inch Stereo Output
3 XLR Mono Mix Output
4 USB Port
5 Pro16e A-Net In Port
6 DC Power Connector

Stereo Audio Outputs

Function

5

4

6

The A640 Personal Mixer's current stereo mix is available at the 1/8-inch and 1/4-inch TRS (tip, ring,
sleeve) outputs on the rear panel. Plug standard stereo headphones or earbuds into the jacks,
adjusting the listening level with the Ma Ste R Volu Me knob on the front panel.

Both stereo outputs may be used at the same time. Use headphones/earbuds with similar output
impedances to avoid volume level dierences between users.

XLR Mono Output

In addition to the stereo mix, the A640 outputs a mono version of the current mix which is available
at the XLR output on the rear panel. The mono output may be connected to a wireless in-ear
transmitter, audio recording device, bass shaker, powered speaker, etc. Adjust the mono aux mix's
output level with the independent au x Vol uMe knob on the front panel.

Page 20Aviom A640 Personal Mixer User Guide

Channels in the aux mix ignore any left/right panning set up in the stereo
version of the monitor mix.

By default, the mono mix contains the same channels as the stereo mix. The mono mix channels are
always at the same volume level as those in the stereo mix. The Aux Mix can also output a custom set
of channels selected from your monitor mix by using the Aux Mix Setup function found in the Mixer
Setup window.

See page 71 to learn how to set up a custom Aux Mix.

USB Port

Save and recall your A640 mix settings and congurations with a standard USB storage device
connected to the A640's USB port. If new A640 rmware is available, the A640 can be updated by
using the Check for Updates function, found in the File Transfer section of the Mixer Setup menu.

The USB data port is designed to use a PC-formatted USB storage device
and is not designed to work with external hard drives or any other types of
peripherals that connect via USB. It cannot be used to charge another USB
device.

To learn more about the File Transfer function and saving and recalling A640 congurations, see page

51.

A-Net In Port

Aviom's high speed, low latency A-Net audio data transport protocol can connect a virtually
unlimited number of A-Net devices. The A-Net port on the A640 Personal Mixer can supply up to
64 sources for the A640 to choose from when creating custom channel mappings for a performer's
monitor mix.

The A640's A-Net In port can be connected to current or legacy A-Net devices including analog input

Page 21Aviom A640 Personal Mixer User Guide

modules, digital console cards, and A-Net Distributors.

The A-Net In port can accept standard Cat-5e (or higher) network cables or those tting with the
locking EtherCon® jack.

See page 6 for product compatibility info.

DC Power Connector

The A640 Personal Mixer is designed to be connected to an Aviom A-Net Distributor to receive its
digital audio data and 24V DC power over the same Cat-5e cable. When using the A640 with an A-Net
device that does not supply DC power over the Cat-5e cable, you can use the optional PS-120 Power
Supply (or PS-240 international version) connected to the DC jack on the A640.

See page 7 for additional information on DC power supplies for the A640.

Page 22Aviom A640 Personal Mixer User Guide

Creating a Monitor Mix

The A640 Personal Mixer simplies the task of creating and using a monitor mixer
while performing by oering a variety of ways to access and manage the individual
components of your personalized mix.

A640 Mix Views

(L/R) Channel View, Mix View, and Names View

The A640’s built-in liquid crystal display (LCD) can show your mix settings in one of three views—
Channel View, Mix View, or Names View. Cycle through the three views at any time while mixing by
pressing the dedicated Vi e w button found above the display.

Channel View displays the most detail for the selected channel —volume, mono/stereo pan, treble
and bass tone controls, and the eects (EFX) level. Use Channel View to ne tune the settings for each
channel when setting up a monitor mix.

Mix View shows an overview of the volume levels of all channels in the current mix, including the
Favorite and Ambience mic channels. The currently selected channel’s volume and mute may be
edited.

The Names View provides an easy way to see the text labels for all channels without needing to
add a printed label strip or tape to the A640 surface. The currently selected channel’s volume and
mute may be edited while in Names View. Custom channel names can be entered by using the Edit
Channel Names function found in the Mixer Setup window.

D800 Sync Indicator

Two-way communication between the A640 and D800 is required to use the Intercom and other
features such as receiving channel names via Dante. Whenever the A640 Personal Mixer is used with
the D800 or D800-Dante A-Net Distributor the A640 will indicate its sync status with the D800 by
displaying a green bar in the upper left corner of the LCD. The sync status will be shown in each View

Page 23Aviom A640 Personal Mixer User Guide

as long as the D800's I/II switch is in the "II" position.

3

George

A green indicator shows two-way communication with a D800.

The sync process takes a few seconds to complete when an A640 Personal Mixer is rst connected to
the D800 or when the system is rst powered on. In a Dante-based system, channel names entered in
Audinate's Dante Controller software can be shared with the A640 from the D800-Dante.

Bidirectional communication with the D800 or D800-Dante requires that the
D800's front-panel I/II switches be set to the "II" position for each port where an
A640 Personal Mixer will be used.

Common Editing Functions

While making a monitor mix there are three mix functions that are always available for the selected
channel regardless of the currently selected View—Solo, Mute, and Group. Press the assignable
button beneath the display on the A640 to activate the function.

Solo

To listen to the currently selected channel in Solo mode, press the Solo button; it will light green in
the display. The selected channel is heard in isolation while all other channels are temporarily muted.
To hear a dierent channel in solo, press its channel button. To exit Solo mode and return to normal
mixing, press the So lo button again.

When using Solo in the Mix view or Names view, any channels in Solo will have a green highlight.

Page 24Aviom A640 Personal Mixer User Guide

14

Ac. Gtr 2

The Solo button lights green when any channel is placed into Solo mode.

Additive Solo

To hear multiple channels while in Solo mode, double-click channel buttons to add them to the Solo
mix. The info bar at the top of the current View’s window will indicate Additive Solo Mode whenever
more than one channel is in solo. To remove a channel that has been added to the Additive Solo
group, double-click its channel button again. To exit Additive Solo mode press the So lo button to
return to normal mixing.

When using Additive Solo in the Mix view or Names view, all channels added to the Solo group will
have a green highlight.

Channels 5, 6, 9, 12, and 13 are shown in Additive Solo Mode in the Mix View (L) and Names View (R).

The Solo mode on/o state is temporary and is not saved as part of a mix preset or conguration.

Page 25Aviom A640 Personal Mixer User Guide

Mute

Silence the currently selected channel or Group by pressing the Mute button. The channel is
removed from the mix; its settings for volume, pan, tone control, and eects remain in view and can
be edited if needed.

3

George

Any number of channels can be muted in a monitor mix. Any time a muted channel is selected in the
Channel View, the on-screen Mute indicator will light. A dedicated gold LED beneath the channel
button also lights for each muted channel on the A640.

In Mix View, a muted channel displays a gold Mute indicator above its channel number and its
volume level blue bar is also dimmed. Muted channels in Names View also display with dimmed
volume bars and channel names. The on-screen Mute button lights only when a muted channel is
selected.

A muted channel (with dimmed volume level or text) as seen in Mix View and Names View

Press the Mu te button again to return the selected channel to the mix.

Each channel’s Mute state is saved as part of a mix preset and as part of a conguration when saved
to a USB storage device.

Page 26Aviom A640 Personal Mixer User Guide

Mute All - The A640 Personal Mixer contains a special feature that will mute

Cymbals

all channels at once. Double-click the Mu te button to activate the Mute All
function. Press the Mu te button again to exit and return to mixing.

Group

The A640 can create up to four channel Groups which make it easy to change the volume of a set of
related channels (all vocals or all drums, for example). A Group can contain any number of channels,
but each mixer channel may only be part of one Group at a time. The Ambience channel cannot be
added to a Group.

To create a Group:

• Select the rst mix channel that will be part of the Group.

• Press the GRoup button; it lights in purple.

• Double-click other channels to add them to the Group.

• The green Select LEDs blink as channels are added to the Group.

• Press the GRoup button again to complete the process.

• The Group indicator goes out.

• The Select LEDs for all channels in the Group are now lit solid green.

• With any member channel of the Group selected, turn the right encoder to adjust the
volume of the Group.

Note that the status bar at the top of the A640 display reads Group 1 (or 2,3,4) when the Group is
selected while mixing. While creating or editing a Group the status bar will display the name of the
last selected channel within the Group.

Organ

1

John Paul George Richard

5

Guitar 1 Bass Piano Organ

9

Kick Snare

13

Ac Gtr 1 Ac Gtr 2 Keys 1 Bkd. Voc

A Group of ve channels being created in Names view

When any member channel of the Group is selected while mixing, you can edit the overall volume of
the Group with the A640's right rotary encoder. All channels in the Group change volume at the same
time and will maintain their volume levels relative to each other within the Group. A Group may also
be muted; pressing the Mu te button will silence all member channels in the Group. When muted, the

2

6

10

3

7

11

4

8

12

Guitar 2

14

15

16

Amb Mic

GroupSolo Mute

Page 27Aviom A640 Personal Mixer User Guide

gold Mute LED will be on for all members of the Group.

To create additional Groups:

• Select any channel that is not currently part of an established Group.

• Press the GRoup button; it lights in purple.

• Double-click other channels to add them to the Group. (Adding a channel that is already
part of an existing Group to a new Group will remove its assignment as a member of the
original Group.)

• Press the GRoup button again to complete the process.

• The Group indicator goes out.

While mixing, each Group will be identied (Group 1, Group 2, Group 3, etc.) whenever any channel
belonging to a Group is selected.

All Groups and their settings are saved as part of a mix preset and are also saved when an A640
conguration is saved to a USB storage device using the File Transfer function found in the Mixer
Setup menu.

Editing a Group

Any channel that is part of a Group may be edited or removed from a Group completely. This allows
each channel's volume, pan, tone and eects (EFX) level to changed while it remains an active
member of a Group.

To edit a channel's mix settings while it is part of a Group:

• Switch to the desired View (Channel View oers the most detailed editing).

• Select the Group that contains the mix channel that you need to edit.

• Press the GRoup button; it lights purple.

• The channels that are part of the Group have blinking green Channel Select LEDs and one
of those channels is lit with a solid LED. This is the channel that is active for editing.

• To choose a dierent channel to edit, press its channel button to select it.

• Its green Select LED will light solid while all others blink.

• Make edits to volume, pan, tone, or eects as needed.

• To remove a channel from the Group, double-click its channel button.

• Continue the process to select other Group channels for editing.

• When the edits are complete, press the GRo up button again to exit and return to mixing.

The example below shows a Group of ve channels (5, 6, 7, 9, and 10), a blend of mono and stereo
audio. When selected, all members of the Group are highlighted (as seen here in Mix View in the left
image).

Page 28Aviom A640 Personal Mixer User Guide

A Group is selected (left) and its volume is changed (right). All channels change by the same amount.

When the A640's right side rotary encoder is turned, the volume level for each channel in the Group
is changed by the same amount. In the example, all channels have been lowered in volume by
rotating the right encoder to the left. For reference, the level dierence is illustrated with orange bars
in the right-side image above.

Page 29Aviom A640 Personal Mixer User Guide

Channel View

The A640 Personal Mixer’s Channel View displays a complete channel strip for the currently
selected mixer channel. It displays the channel’s number and name, volume level, mono/stereo pan
information, Treble and Bass tone control amounts, and its Eects (EFX) level. In addition, Channel
View will display the Solo, Mute on/o, Group, and Favorite channel status as needed.

Channel
Number

Pan
(mono)

Selected for
editing

Treble
Amount

Channel Solo

Active

Pro16 mode Stereo
Channel Numbers

13

Guitar 1

Channel

Name

Volume
(mono)

7-8

St.Piano

Pan
(stereo)

Stereo indicators for volume, pan and Pro16

In Pro16 mode, stereo channels use a pair of adjacent mix channel buttons on the A640. Stereo
channels are indicated with two numbers (1-2, 7-8, 13-14, etc.) in the gray box next to the channel
name at the top of the display.

Stereo
Indicator

Volume
(stereo)

Page 30Aviom A640 Personal Mixer User Guide

In the A640's Default and Custom modes, stereo channels will display the mix channel’s button
number only. Stereo is indicated on the Pan control with two icons and by the special ST icon in the
Volume bar.

Editing in Channel View

The A640’s central rotary encoders each have dedicated functions in Channel View. The left encoder
is used to select Pan, Treble, Bass, or Eects (EFX) for editing. Press the encoder’s button to cycle
through the four options. Turn the left encoder left/right to change the value for the currently
selected option.

The right encoder is used to change the selected channel’s volume level. The right rotary encoder's
button is not active in Channel View.

At the bottom of the Channel View are selections for Solo, Mute, and Group. Use the assignable
buttons beneath the display to access these features.

Pan

Channel View should be used to set up the basic stereo image for your monitor mix. For mono
channels, Pan is shown with a single indicator. When a channel is fully centered in the mix, the Pan
indicator is a green triangle. As the channel is moved through the stereo eld, its position is shown
with a red indicator. As the signal reaches the extreme left or right side, the position indicator turns to
green.

3

George

Channel 3 is shown with its Pan set at center, partially left, and fully left.

3

George

3

George

Stereo Pan

For stereo channels, Pan position is shown with a pair of indicators. As with mono channels, when the
left/right channels are at the boundary of the stereo eld, a pair of green indicators is used. As the
Pan knob (left rotary encoder) is turned the stereo position is shown with a pair of red indicators. The
A640 oers a number of creative pan position options as you turn the encoder that vary the left/right

Page 31Aviom A640 Personal Mixer User Guide

positioning as well as the stereo width of the audio source.

7

Piano

Pan

Treb

Bass

EFX

ST

V

O

L

U

M

E

GroupSolo Mute

Channel 7 is panned in the stereo eld.

When a stereo channel's left/right sides reach the center as the Pan encoder is turned, the signal is
mono and displayed with a single green triangle.

Pan settings are saved as part of a mix preset saved to any of the A640's 16 mix preset locations.

Tone Controls

Each mix channel on the A640 has a pair of tone controls, Treble and Bass. Use these to ne-tune the
audio of the individual channels in your monitor mix. Use the left encoder's push button to cycle
through the channel-level options in Channel View—Pan, Treble, Bass, and Eects (EFX).

The Treble and Bass tone controls are positive-only (boost); they add treble or bass to the sound of
the channel but cannot subtract it. Turn the left encoder left/right to adjust the amount of Treble or
Bass boost. The default amount is fully left.

Page 32Aviom A640 Personal Mixer User Guide

View Mixer Setup

Channel

Mix

Names

Signal/Clip

Save Recall

AmbienceIntercom

Trim All

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Aux Volume Master Volume

Master EQ

With the Bass tone control selected, turning the encoder to the right adds a bass boost.

The per-channel Treble and Bass amounts are saved when a mix preset is stored into one of the
A640's 16 preset memory locations and will also be restored with any congurations saved to a USB
storage device using the File Transfer options found in the Mixer Setup window.

EFX

Each mix channel on the A640 Personal Mixer can make use of the built-in Eects (EFX) engine.
Adding a little reverb to a channel can make a singer or horn player using earbuds more comfortable,
putting a little space around them in the monitor mix.

Use the left encoder's push button to cycle through the channel-level options in Channel View. When
EFX is selected, turn the left encoder to add reverb to the selected channel. The default amount is
fully left (o).

The EFX amounts for each channel are saved when a mix preset is stored.

Page 33Aviom A640 Personal Mixer User Guide

Mix View

To see the volume level of every channel in a mix, use the Mix View. Mono channels are displayed
with a single blue volume level bar; stereo audio has a double blue bar. A selected channel (or Group)
is highlighted and its channel number is shown in white. Muted channels have gold Mute indicators
above the channel number, and their blue volume level bars are dimmed.

Channel Number Channel (or Group) Name

Selected
channel

The Favorite and Ambience channels are also displayed in Mix View, indicated on screen with an F for
the Favorite channel and an A for the Ambience mic channel. When using the A640 Personal Mixer in
Custom mode, the Favorite channel is replaced with a fully-assignable channel 17.

Stereo
Channel

Mono
Channel

Muted
Channel

Editing in Mix View

Each channel's volume and mute on/o can be changed while in Mix View. The left encoder will
scroll left or right through the mix channels. Use the right encoder to change the volume level for the
selected channel (or Group). The left and right encoder push buttons are inactive in Mix View.

Page 34Aviom A640 Personal Mixer User Guide

Channels 5, 6, 7, 9, and 10 belong to Group 1, as seen in Mix View

As with the Channel and Names Views, you can solo or mute channels in the mix by using the Solo or

Mu te buttons on the A640. Groups can be created or edited from Mix View as well.

When using the A640's Custom mode, any mix channels that are set to be disabled (no network Slot
assignment) will be skipped as you scroll through the channels with the left encoder. See page 65
for more info on channel mapping.

The Solo, Mute, and Group functions are not available when the Ambience
channel is selected.

To edit the Pan, Treble, Bass, or Eects (EFX) settings for a channel, switch to Channel View.

Page 35Aviom A640 Personal Mixer User Guide

Names View

Cymbals

The Names View allows you to see all default or custom channel names at a glance. The currently
selected channel is displayed with a gold outline. Volume levels for all channels (mono and stereo)
are shown with a single blue horizontal bar. A muted channel's name and volume bar are dimmed.

Channel Number Selected Channel (or Group) Name

7

Piano

Selected
channel

1

John Paul George Richard

5

Guitar 1 Bass Piano Organ

9

Kick Snare

13

Ac Gtr 1 Ac Gtr 2 Keys 1 Bkd. Voc

2

6

10

3

7

11

4

8

12

Channel
Volume

Guitar 2

14

15

16

Muted
Channel

Amb Mic

GroupSolo Mute

When using the A640's Custom mode, a fully assignable channel 17 will appear in the on-screen
names list. The Ambience channel does not appear in Names View.

Editing in Names View

The selected channel's (or Group's) volume and mute on/o can be changed while in Names View.
The left encoder will scroll left or right through the mix channels. Use the right encoder to change
the volume level for the selected channel. The left and right encoder buttons are inactive in Names
View.

When using the Custom mode, any mix channels that are set to be disabled (no network Slot
assignment) will be skipped as you scroll through the channels with the left encoder. See page 65
for more info on channel mapping.

Solo or mute channels or Groups in the mix by pressing the So lo or Mut e buttons on the A640
below the display. In Solo (or Additive Solo) mode, channel names are shown in green. Any Groups
created or edited from Names View will show all member channels highlighted in gold whenever any
mix channel that is part of a Group is selected.

Page 36Aviom A640 Personal Mixer User Guide

Cymbals

Organ

1

John Paul George Richard

5

Guitar 1 Bass Piano Organ

9

Kick Snare

13

Ac Gtr 1 Ac Gtr 2 Keys 1 Bkd. Voc

Creating a Group with ve channel members

When a muted channel is selected in Names View, the channel name changes from gray to white.
Press the Mu te button to return the channel to the mix.

11

1

John Paul George Richard

5

Guitar 1 Bass Piano Organ

9

Kick Snare Cymbals Guitar 2

13

Ac Gtr 1 Ac Gtr 2 Keys 1 Bkd. Voc

2

6

10

14

Cymbals

2

6

10

14

3

7

11

4

8

12

Guitar 2

15

16

Amb Mic

GroupSolo Mute

3

7

11

15

4

8

12

16

Amb Mic

GroupSolo Mute

Channel 11 is muted and selected for editing.

To ne tune other channel settings (pan, bass, treble, etc.) for a single channel or for any members of
a Group, switch to the Channel View.

Page 37Aviom A640 Personal Mixer User Guide

Intercom Setup

The A640 Personal Mixer's intercom is a convenient way for A640 users to
communicate with each other while wearing headphones or earbuds during a live
stage or theater performance, recording session, TV broadcast, etc.

The Intercom feature requires that the personal mixing system include a D800 or D800-Dante A-Net
Distributor (with v4.00 or higher rmware installed). The D800 can support up to eight A640 Personal
Mixers.

Using the Intercom also requires that each port of the D800 or D800-Dante that will make use of
the Intercom feature has its I/II switch set to the 'II' position to enable bidirectional communication
between the A640 Personal Mixers and the host D800.

D800 I/II switches must be set to the “II” position.

The basic steps required to set up the Intercom include:

• Connect A640 Personal Mixers to a D800 or D800-Dante A-Net Distributor.

• Set the D800 front panel I/II switches to "II."

• Choose a global Broadcast Slot for the Intercom audio being sent through the network.

• Set the desired audio source (internal mic, external mic connected to the Aviom A-Net
network, or none) for each A640 Personal Mixer that will transmit over the Intercom.

Attempting to use the Intercom without a connection to a D800 or D800-Dante A-Net Distributor will
result in an error message being displayed on the A640.

Page 38Aviom A640 Personal Mixer User Guide

ERROR: Must be connected to D800 or

D800-Dante v4.00 or newer

Press any button to continue.

The Intercom feature requires a connection to a D800 or D800-Dante.

Transmitting and Receiving Intercom Audio

The Intercom feature needs at least one A640 Personal Mixer set up to transmit Intercom audio
to other A640 users, and one dedicated network Slot assigned to broadcast and route that audio
throughout the network to the other A640 users.

For ultimate exibility the Intercom transmit audio source can be set independently for each A640
Personal Mixer in the monitor mixing system. This allows multiple A640 users to have the option to
transmit audio over the network to other A640 users. Users also have the option to choose the built­in A640 mic or an external mic connected to the network as the source of their audio transmitted to
other users.

Transmitting Intercom Audio

The Intercom Audio Source setting tells each A640 Personal Mixer how they will send Intercom
audio from their A640 to the other A640 users listening to the Intercom audio. The choices are:

• Listen Only (no transmitting allowed),

• the Internal Mic built into the A640, or

• an external microphone connected to the Aviom network and active on one of its 64 Slots.

Page 39Aviom A640 Personal Mixer User Guide

Intercom Audio Source

Listen Only

Internal Mic

Back

Selecting a transmit source for the Intercom

To choose the Intercom’s audio transmit source:

• Choose Intercom in the Mixer Setup menu; press either encoder button to open the
options.

• Select the Audio Source option by pressing either encoder button.

• Scroll to select Internal Mic or any one of the 64 network Slots where an external mic is
connected.

• To prevent an A640 from broadcasting over the Intercom, choose Listen Only.

• Press either encoder button to conrm the selection.

• The display returns to the main Intercom window and the selected source is shown within
the Audio Source text.

Slot 1

Slot 2

Slot 3

Slot 4

See page 73 for additional information about setting up the Intercom.

When using a D800-Dante A-Net Distributor, note that the Audio Source setting
for transmitting audio while using an external microphone must be set to a
Dante channel that is both active in the Dante network and available at the
current Dante sample rate.

Receiving Intercom Audio

The Broadcast Slot is a global setting that tells the A-Net network which network channel (referred to
as a Slot) will be used by all A640 Personal Mixers when they listen to incoming Intercom audio from
another A640 user.

You can choose any one of the 64 available network Slots to be the Broadcast Slot, regardless of the
sample rate that might be selected when using a D800-Dante A-Net Distributor (the Dante network's
sample rate does not aect the number of Slots available in an Aviom A-Net network). The A-Net
Pro16e network always has 64 available Slots. Choose a Broadcast Slot that will not be used for
monitor mixing audio, for example, Slot 64.

Page 40Aviom A640 Personal Mixer User Guide

The A640 must be connected to a D800/D800-Dante to access the Broadcast Slot settings. To set the
intercom Broadcast Slot source from the Intercom window:

• Press the Mi xeR Se tup button

• Open the Intercom settings from the list of options.

• Scroll to select the Broadcast Slot option in the Intercom settings.

• Press either encoder button to open the channel list.

• Scroll with the encoders to select None (Intercom disabled) or any one of the 64 A-Net
network Slots.

• Press either encoder button to conrm the selection.

• Press Ye S to set the Broadcast Slot or no to return to the Slot list.

Are you sure? Changing the Broadcast

Slot aects the entire network.

No Yes

Press Yes to conrm the selection.

After conrming, the display returns to the main Intercom window and the current Broadcast Slot
source is shown within the Broadcast Slot text.

Only one A640 needs to set up the Broadcast Slot. The Broadcast Slot selection
will be transmitted to the D800 from the A640 and then broadcast from the
D800 to all other A640 Personal Mixers connected to it.

When an A640's Intercom Audio Source is set to Listen Only, you cannot change the Broadcast Slot
from that A640. An error message will be displayed.

Cannot change the Broadcast Slot

while in Listen Only mode.

Press any button to continue.

You can temporarily set the Audio Source to Local Mic or a network Slot to make the change or opt to
edit the Broadcast Slot from a dierent A640 in the network.

Additional information about setting up the options for the Intercom are found in the Mixer Setup
window. See page 73.

Page 41Aviom A640 Personal Mixer User Guide

Intercom Modes

The A640 Personal Mixer's Intercom function can operate in one of two modes—momentary (push­to-talk) or latched (hands-free).

Momentary

The momentary (push-to-talk) Intercom function is useful when you need to transmit a brief message
to the other A640 users in the network. Holding the int eRco M button down activates the Intercom
and transmits audio from your location while you speak until the button is released. The Intercom
LED will light solid on the speaker's A640 for as long as the button is held down. On other users' A640
Personal Mixers the Intercom LED blinks to notify them that Intercom audio is available. Each user
can choose an Intercom Receive Volume level for Intercom audio that best suits their needs.

Intercom

Receive
Volume

D800 Port 1

You are the speaker.

Audio Source = Internal Mic
Intercom Broadcast Slot = 64

Each A640 can set its own Intercom Receive Volume.

Hold the Intercom button down and turn either encoder to set the Intercom
Receive Volume.

Latched

For longer hands-free communications, press the in teR coM button once to latch it on. The Intercom
will remain active without requiring that the button be held down. When done speaking, press the

in teRc oM button a second time to turn it o. The speaker's Intercom LED remains lit solid until the
in teRc oM button is pressed a second time to exit the latched mode. As with the momentary Intercom

mode, the other A640 users' Intercom LEDs blink to notify them that Intercom audio is available.

Page 42Aviom A640 Personal Mixer User Guide

Only one A640 Personal Mixer can be the Intercom's Speaker on the network at
a time for both momentary and latched modes.

Attempting to activate the latched mode on a second A640 while the Intercom is already active on
another A640 results in an error message.

ERROR: Cannot latch Intercom on.

Another mixer is already the speaker.

Press any button to continue.

The Intercom supports one speaker at a time.

How The Intercom Works

To transmit audio via the Intercom, an A640 Personal Mixer can use either its internal Ambience mic
or an external mic connected to one of the network Slots.

Using the Local Mic

The following diagram illustrates how the Intercom works when using the A640's built-in Ambience
mic as the source for the Intercom audio.

In each Cat-5 cable in an Aviom Pro16e A-Net network, all 64 available network Slots are always
present (whether they have audio assigned to them or not). This is indicated with the orange arrow in
the diagram below. The A-Net data stream is being sent from a D800 A-Net Distributor to the A640's
A-Net In jack.

Page 43Aviom A640 Personal Mixer User Guide

A-Net Network
Slots 1-64

View Mixer Setup

Channel

Mix

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Names

Trim All

Aux Volume Master Volume

Master EQ

64 network channels are sent to an A640 from a D800.

The A640 Personal Mixer receives the multi-channel A-Net digital audio sources and then maps those
audio sources to its mix channel buttons according to the currently selected mode that the A640 is
set to—Pro16, Default, or Custom. Network channels (Slots) that are not assigned to a mix channel
button are simply ignored. See page 77 for more info on using and selecting the A640 modes.

One of the 64 A-Net network Slots is assigned the duty of carrying the Intercom audio, known as the
Broadcast Slot, on one of those 64 Slots. This global network Slot will contain the Intercom audio for
all users and the D800 will distribute it to all A640 Personal Mixers connected to its front panel A-Net
ports. (Slot #64 is chosen for broadcasting Intercom audio in this example.)

When the in teRcoM button is held down, the A640 display shows the current Intercom Receive
Volume level and other information about the current Intercom setup.

Intercom

Receive
Volume

D800 Port 1

You are the speaker.

Audio Source = Internal Mic
Intercom Broadcast Slot = 64

Intercom info is displayed when you hold the Intercom button down.

Page 44Aviom A640 Personal Mixer User Guide

While the Intercom is active, the local mic on the A640 picks up the user's voice and transmits it as
digital audio back to the D800 (shown in the illustration below with a purple arrow).

A-Net Network
Slots 1-64

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Intercom
transmission

View Mixer Setup

Channel

Mix

Names

Trim All

Aux Volume Master Volume

Master EQ

The local Ambience mic transmits Intercom audio to the D800 A-Net Distributor

The D800 seamlessly merges the Intercom audio from the user's local mic into the A-Net digital data
stream (on the designated Broadcast Slot) and then distributes it to all connected A640 Personal
Mixers along with the other audio sources making up the monitor mix (illustrated with green arrows
below).

View Mixer Setup

Channel

Mix

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Names

Trim All

Aux Volume Master Volume

Master EQ

Save Recall

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

View Mixer Setup

Channel

Mix

Signal/Clip

AmbienceIntercom

Names

Trim All

Aux Volume Master Volume

Master EQ

Save Recall

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

View Mixer Setup

Channel

Mix

Signal/Clip

AmbienceIntercom

Names

All users hear intercom audio sent from A640 #1 when its Intercom button is pressed.

Aux Volume Master Volume

Master EQ

Trim All

Page 45Aviom A640 Personal Mixer User Guide

The D800 noties all A640 users that there is Intercom audio available by blinking their Intercom

Signal/Clip

Aux Volume Master Volume

Master EQ

Channel

Mix

Names

Trim All

View Mixer Setup

LEDs. All A640 Personal Mixer users can hear the Intercom audio and control its local volume.

Save Recall

AmbienceIntercom

The Intercom LED ashes to notify users that Intercom audio is being transmitted.

The other A640 Personal Mixer users connected to the D800/D800-Dante will see Intercom info in
their display when their local in teR coM button is held down.

Intercom

Receive
Volume

D800 Port 1

Dave’s A640 is the speaker.

Intercom info is displayed when you hold the Intercom button down.

Audio Source = Disabled, Listen Only
Intercom Broadcast Slot = 64

Users listening to the Intercom are shown the name and location of the A640 Personal Mixer that is
currently transmitting the Intercom audio when their inteRc oM button is held down. (In this example,
the user connected to D800 port #1 has named this A640 "Dave's A640" by using the Edit Mixer
Name function found in the Mixer Setup window.)

Adjust the Intercom Receive Volume at any time while the in teRc oM button is held down by turning
either encoder.

Page 46Aviom A640 Personal Mixer User Guide

Using an External Mic

In some applications, it may be benecial to use an external microphone as the input source for
transmitting audio over the Intercom. For example, this might include a head-worn or lavalier mic
used by a musical director, a wireless mic that is being shared by multiple performers, or an o-stage
mic being used by a member of the tech sta for communication purposes.

Using an external microphone to transmit Intercom audio requires that the mic be connected to the
Aviom network and assigned to one of its 64 available audio Slots. In most cases this microphone—
intended to be heard by only the performers using A640 Personal Mixers—would not be routed to
any front-of-house (FOH) mix that the audience would hear. The mic can be connected directly to an
AN-16/i Input Module (with the use of an optional mic preamp), to a line-level input on an AN-16/i
from an analog output on a mixing console, to one of the 16 Slots available on a digital console card,
or from a Dante network.

When using a D800-Dante A-Net Distributor, note that the Audio Source setting for transmitting
audio while using an external microphone must be set to a Dante channel that is both active in the
Dante network and available at the current Dante sample rate.

To choose an external microphone as the Intercom’s transmit audio source:

• Connect the external mic to the audio system's mixing console as you would any other
microphone.

• Route the external mic's audio to an available A-Net network Slot.

• On the A640, press the Mi xeR Setu p button.

• Choose Intercom from the menu.

• Press the encoder button to open the Intercom options.

• Select the Audio Source option by pressing either encoder button.

• Scroll to select the network Slot where the external mic is connected.

• Press either encoder button to conrm the selection.

Intercom Audio Source

Slot 56

Slot 57

Slot 58

Slot 59

Slot 60

Lorem ipsum

Back

Selecting an external mic on Slot 57 as the transmit source for the Intercom

• The display returns to the main Intercom window and the selected source is shown within
the Audio Source text.

Slot 61

Page 47Aviom A640 Personal Mixer User Guide

• You are now ready to use the external mic to transmit Intercom audio whenever the

in teRc oM button is pressed.

The Intercom's Audio Source and Broadcast Slot must be set to dierent Slot
numbers within the network when using an external mic.

Information about the external mic and its Slot assignment is shown in the A640 display when the

in teRc oM button is held down.

Intercom

Receive
Volume

D800 Port 1

You are the speaker.

Audio Source = External Mic, Slot 57
Intercom Broadcast Slot = 64

Info about the external mic is displayed when you hold the Intercom button down.

Using Multiple External Mics

In some settings it may be convenient to have multiple A640 users capable of speaking over the
Intercom, each using an external mic at their location. To do this, follow the instructions above for
setting up an external mic as the audio source for transmitting Intercom audio. Choose a dierent
network Slot to transmit the second user's Intercom audio, being careful not to select a network Slot
that is already in use for monitor mix audio.

Only one A640 user may be the speaker at a time while using the Intercom.

Intercom Audio and Legacy Devices

When using the A640 Personal Mixer in a system that also includes other Aviom Personal Mixers such
as the A360, A320, and A-16II, Intercom audio can be heard on these devices as long as the system is
set up the allow the legacy Personal Mixers to access the Intercom audio's network Slot.

Page 48Aviom A640 Personal Mixer User Guide

There are some limitations:

• The A360, A320, and A-16II cannot indicate to the user that someone is speaking on the
Intercom.

• Legacy Personal Mixers cannot distinguish between A-Net Slots. The audio from the
Intercom broadcast throughout the network is treated the same as any other mono audio
source.

• The legacy Personal Mixers cannot become a speaker on the Intercom, or interact with the
Intercom in any way.

• A320 and A-16II Personal Mixers do not have any channel mapping capabilities.

A-16II Personal Mixer

To make use of Intercom audio on an A-16II Personal Mixer, the Intercom audio must be mapped to
an A-Net Slot (using the Broadcast Slot setting) that is within the range of Slots 1-16. All A-Net Slot
numbers above 16 are invisible to an A-16II.

A320 Personal Mixer

To hear Intercom audio on an A320 Personal Mixer, the Intercom audio must be mapped to an A-Net
Slot that is available to the A320 —in the range of Slots 1-32. Network Slot numbers 33 and above are
invisible to an A320.

Note that the A320 has two operating modes—16-channel and 32-channel—so choosing which Slot
to broadcast Intercom audio on will depend on which mode the A320 Personal Mixers will be set
to. When using the 16-channel mode, no network Slots above 16 are available to an A320 Personal
Mixer.

A360 Personal Mixer

The A360 is the most exible Personal Mixer when used with the A640 and its Intercom feature. The
A360's Custom mode allows any incoming network Slot to be mapped to any A360 mix channel.
This makes the entire 64-channel network range of channels available to the A360 Personal Mixer.
Create a custom channel map using the A360 Channel Manager software and then load a saved
conguration into the A360 from a USB storage device.

Page 49Aviom A640 Personal Mixer User Guide

Mixer Setup Menu

Volume

Master EQ

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Pressing the dedicated MixeR Setu p button at the top of the A640 interface opens the Mixer Setup
menu which provides access to the A640 Personal Mixer’s customizable settings and storage options.
Each function in the list contains a Help page that provides a brief overview of the selected function’s
operation.

View Mixer Setup

Channel

Mix

Names

Signal/Clip

Save Recall

AmbienceIntercom

Trim All

Aux Volume Master

Press the Mixer Setup button to access the Setup menu.

Scroll to select an option from the Mixer Setup menu. Press either encoder button on the A640 to
access its settings and options.

Page 50Aviom A640 Personal Mixer User Guide

The available options are:

• File Transfer

• Edit Channel Names

• Channel Mapping

• Aux Mix Setup

• Intercom

• Mode

• Clear Current Mix

• Edit Mixer Name

• LCD Backlight Level

• Help

• Restore Defaults

• About This Mixer

Mixer Setup

File Transfer

Edit Channel Names

Channel Mapping

Aux Mix Setup

Intercom

Mode (Pro16)

Back

Some functions make use of the A640’s assignable buttons beneath the display to conrm edits,
navigate the windows and menus, choose options, or cancel an operation. (Press bac k to exit, for
example.) Press the corresponding button beneath the display to activate the function.

The following section explains each option in the Mixer Setup menu in detail.

File Transfer

The A640 can save and load mix presets, custom congurations, and access rmware updates using a
USB storage device connected to its USB port.

By using the File Transfer functions, it’s easy to back up settings from the A640 Personal Mixer or
create a conguration in one A640 that will be loaded into multiple A640 Personal Mixers via a USB
storage device.

Three options are available in the File Transfer menu. A properly formatted USB storage device must
be connected to the A640’s USB port to access the three options.

Scroll with either encoder knob to select the option you want. Press the encoder to activate it.

Page 51Aviom A640 Personal Mixer User Guide

While using the File Transfer functions, audio is temporarily disabled. The A-Net
LED will blink while the File Transfer window is open.

USB Data Port

The A640’s USB data port is designed to use a PC-formatted USB storage device (also referred to
as a memory stick or thumb drive) to update its rmware and save/recall mixer congurations and
Mix Presets. It is not designed to work with external hard drives, computers, or any other type of
peripherals that connect via USB.

The Aviom le and folder structure on a USB storage device

All A640 congurations are stored in a folder named A640_cong_les found within a folder
named Aviom created at the root level of the USB device which will be created automatically when a
conguration is saved from the A640’s File Transfer function.

The USB storage device can contain other types of data, folders, pictures, etc., but the Aviom folder
must reside at the root level of the device in order to be recognized by the A640 Personal Mixer.

Save a Conguration

The A640 can save all settings for its 16 mix presets as well as custom channel mappings and custom
channel names that you have created. Each USB storage device can hold 32 unique congurations.

A conguration saves:

• Mixer Mode (Pro16, Default, or Custom)

• 16 mix presets

• Channel volume for each channel (including Favorite and Ambience channels)

• Pan for each channel

• Treble and Bass tone settings for each channel

• Eects (EFX) settings for each channel

• Mutes

• Groups

• Master EQ settings

• Custom channel names

• Custom channel mappings

Page 52Aviom A640 Personal Mixer User Guide

• Aux Mix settings

• Ambience on/o

• Intercom volume

• Intercom audio source Slot

• LCD Backlight Level

• Mixer Name

• Dante channel names auto-sync on/o setting

• Startup Help on/o at power up setting

Save Conguration

New A640 Cong

DrumSession-02

Rehearsal 6-13

John’s A640

Paul’s A640

George’s A640

To save a conguration:

• Select the Save Conguration option by scrolling with either encoder knob.

• Press the encoder button to activate it.

• When the Save Conguration window opens, a default le name New MixerName Cong
(based on the A640’s current Mixer Name setting) is selected. Any other congurations
previously saved to the USB device are shown in the list.

• Press the en teR soft button on the A640 to start the process.

• Accept the default name or edit the name as needed (scroll with the left encoder; choose a
character with the right encoder).

• Use the cl eaR command to reset the current le name. File names can use up to 32
characters and must contain at least one character *.

• Press the SaV e soft button on the A640 to start the le saving process.

• An on-screen progress bar is displayed and a conrmation message follows once the save
process is complete.

• Press any button to exit the Save function and return to the File Transfer menu.

Back Enter

Saving a new conguration

While editing the le name, a second set of 16 characters will become available once a character has
been added to position #16 in the name, indicated by a right triangle. Turn the encoder to access
additional characters for the name.

Page 53Aviom A640 Personal Mixer User Guide

Edit Cong Name

D va e ‘ s M i x e 5 - 1r

Cancel Clear Save

Conguration names can be up to 32 characters long.

To cancel and exit to the File Transfer menu without saving a conguration, press the ca ncel soft
button.

File Name Rules

* Certain le name conventions must be observed in order to retain le compatibility with Mac and
PC computers. The following les name types will not be allowed when saving an A640 conguration:

• Blank conguration names

• Conguration names that start with a period

• Conguration names that end with a period

• Conguration names that are exactly one of the following (case-insensitive) letter/number
combinations: com1, com2, com3, com4, com5, com6, com7, com8, com9, lpt1, lpt2, lpt3,
lpt4, lpt5, lpt6, lpt7, lpt8, lpt9, con, nul, prn, aux

An error message will be displayed if you attempt to save a conguration using one of the
unsupported les names.

Disk Full Warning

When the USB storage device contains the maximum 32 conguration les (either A640 or A360 in
any combination), an error message will be displayed if you attempt to save additional conguration
les. Choose a dierent USB storage device or back up and then delete unwanted congurations les
from the USB device using a Mac/PC computer.

Page 54Aviom A640 Personal Mixer User Guide

ERROR: A maximum of 32

congurations are allowed.

Press any button to continue.

Each USB device can hold 32 congurations.

Updating Congurations

Once a conguration has been saved, you can update it if changes have been made to any of the
settings. This overwrites and replaces the existing le on the USB storage device.

To update an existing conguration:

• Select the Save Conguration option by scrolling with either encoder knob.

• Press the encoder button to activate it.

• When the Save Conguration window opens, scroll to select the previously saved
conguration to be updated from the list.

• Press the SaV e soft button on the A640 to start the process.

• Conrm the overwrite warning by pressing Ye S (or press the no soft button to exit the le
saving process).

• An on-screen progress bar is displayed and a conrmation message follows once the
update process is complete.

• Press any button to exit the Save function and return to the File Transfer menu.

Recall a Conguration

Any one of the 32 possible A640 congurations saved to a USB storage device may be recalled by
using the Recall Conguration function.

As with the Save Conguration function, recalling a conguration from a USB device loads:

• Mixer Mode (Pro16, Default, or Custom)

• 16 mix presets

• Channel volume for each channel (including Favorite and Ambience channels)

• Pan for each channel

• Treble and Bass tone settings for each channel

• Eects (EFX) settings for each channel

• Mutes

• Groups

• Master EQ settings

• Custom channel names

• Custom channel mappings

• Aux Mix settings

• Ambience on/o

Page 55Aviom A640 Personal Mixer User Guide

• Intercom volume

• Intercom audio source Slot

• LCD Backlight Level

• Mixer Name

• Dante channel names auto-sync on/o setting

• Startup Help on/o at power up setting

Recall Conguration

Studio Session-01

Studio Session-02

03_Freddy_Monday

John’s A640

Paul’s A640

George’s A640

Back Enter

Scroll to select a conguration to recall.

To recall a saved A640 conguration:

• Select the Recall Conguration option by scrolling with either encoder knob.

• Press the encoder button to activate it.

• When the Recall Conguration window opens, scroll to select one of the saved
congurations.

• Press the soft button below enteR to start the loading process.

• An on-screen progress bar is displayed and a conrmation message follows once the recall
process is complete.

• Press any button to exit the save routine and return to the File Transfer menu.

To cancel and return to the File Transfer menu without recalling a conguration, press the back
button.

Import an A360 Conguration

The A640 Personal Mixer can import congurations created for the A360 Personal Mixer. A360
congurations save custom channel maps created with the A360 Channel Manager software plus mix
presets 1-16 created on the A360 itself. A360 mix presets saved to its four Instant Mix recall locations
A-D are ignored. Because the feature sets of the A360 and A640 are dierent, importing an A360
conguration will map the A360 settings to the A640 parameters as closely as possible. The Master
EQ settings on the A640 are set to their defaults when importing an A360 conguration.

Imported A360 congurations will appear in the list of available congurations whenever the Recall

Page 56Aviom A640 Personal Mixer User Guide

Conguration function is accessed. A360 conguration le names are formatted as (A360)cong01
through (A360)cong16.

An A640 conguration cannot be loaded into an A360 Personal Mixer.

To import an A360 Personal Mixer conguration:

• Select the Recall Conguration option by scrolling with either encoder knob.

• Press the encoder button to activate it.

• When the Recall Conguration window opens, scroll to select one of the saved
congurations.

• Press the soft button below enteR to start the loading process.

• An on-screen progress bar is displayed and a conrmation message follows once the recall
is complete.

• Press any button to exit the save routine and return to the File Transfer menu.

Tip: The A640 data created by using the Save Conguration function can be
backed up on a Mac/PC computer. Simply copy the entire Aviom folder and its
contents from the USB storage device to the computer.

Do not alter the Aviom folder’s le structure.

Mix presets created on the A360 Personal Mixer store information about the mixer mode (Pro16,
Default, or Custom) that was used when the mix presets were created. Be sure to set the A640 to the
same mode after importing an A360 conguration.

Information about the network’s stereo links are also saved as part of a conguration. Attempting
to recall a mix preset from an imported A360 conguration into a network with dierent stereo link
settings causes a warning message to appear.

NOTE: Stereo links in this preset do

not match the current network settings.

Press any button to continue.

Stereo links are a global network-wide property and must match to make the imported mix presets
fully compatible.

Page 57Aviom A640 Personal Mixer User Guide

Check for A640 Firmware Updates

An A640 Personal Mixer can be updated to install new features by installing new rmware. The Check
for A640 Updates function in the File Transfer menu searches the USB storage device for compatible

rmware update les and can install them if they are found.

Firmware Files

New rmware les for the A640 Personal Mixer have the le extension .upd and must be stored on
the USB device in a specic location in order to be located by the Check For Updates function.

The Aviom folder structure on a USB device

When using a blank USB device for a rmware update for the rst time, create the Aviom folder at the
root level of the USB storage device. Create a second folder named Device_Update within the Aviom
folder to hold the rmware update le(s). Note that A640 congurations are stored in a separate
folder named A640_cong_les which will be created automatically when a conguration is saved
from the A640.

The Aviom folder’s structure and its folder names must be set up exactly as
shown and must be saved at the root level of the USB storage device. Any les
stored outside of the Aviom folder structure are ignored by the A640.

Aviom rmware les for the A640 are built to match the specic circuit board hardware used during
the manufacturing process. There may be multiple rmware les provided for a rmware release,
appended with letters A, B, C, etc. (for example, A640_rmwareA.upd and A640_rmwareB.upd ).
Place all rmware les into the Device_Update folder. The A640 will load the appropriate rmware le
that matches its circuit board hardware conguration automatically.

Firmware les can be copied to a computer for backup purposes. If you need to save dierent
rmware versions in the same directory, rename the les to make each name unique (for example,
A640_rmwareA-01.upd, A640_rmwareA-02.upd, etc.). Files names in the Device_Update folder
must match the original formatting to be recognized By the A640.

Page 58Aviom A640 Personal Mixer User Guide

Updating the A640 Firmware

The rmware update process resets the A640 and clears all user settings and preset data. It is a
good idea to back up the current state of the A640 as a conguration as part of the update process
to preserve your current mixes and user preferences. The rmware update process includes an
opportunity to save all current settings.

Updating the A640 rmware disables all audio and mixing functions until the process is complete.

To update the A640 rmware:

• Select the Check for A640 Updates option from the File Transfer window by scrolling with
either encoder knob.

• Press either encoder button to activate it.

• The A640 searches the USB storage device for a valid rmware le that is newer than what
is currently installed.

A rmware update is available.

Perform an update?

No Yes

Choose Yes to continue the rmware update.

• If new rmware is found, choose YeS to continue and install the update or choose no to
exit without updating the A640’s rmware.

• If you answer Yes to continue the rmware update process you are given the opportunity
to save the current user settings and mix presets in the A640 as a conguration.

All settings and presets will be reset.

Save current settings to a

conguration rst?

No Yes

Choose Yes to save a conguration le.

• Click Ye S to continue the process of saving the A640 settings.

Page 59Aviom A640 Personal Mixer User Guide

• The Save Conguration dialog opens.

• Press en teR to name and save the current conguration.

• When the rmware update message reappears, press Ye S to continue the rmware update.

• Progress bars are displayed during the rmware update process; expect about ve minutes
for the rmware update to complete.

Do not remove the USB storage device while a rmware update is in progress.

Once the update is complete, the A640 Personal Mixer will restart and is ready to begin mixing. If you
saved a conguration le as part of the update process, reload it by using the Recall Conguration
function. See “Recall a Conguration” on page 55.

Edit Channel Names

The A640’s mix channels support multiple forms of channel naming. Channels names can be edited
manually from the Mixer Setup menu or they can be loaded from a Dante network that has a D800­Dante A-Net Distributor connected.

Edit Channel Names

Manual Edit

Load Names from D800-Dante

Auto-Sync with Dante (OFF)

Restore Default Names

HelpBack

Each A640 mix channel name can be up to eight characters long.

Manual Edit

To create (or edit) names for each A640 mix channel manually:

• Select Edit Channel Names from the Mixer Setup menu.

• Scroll with the encoder to select the Manual Edit option.

• Press either encoder button to access the channel name list.

• The channel list will open and display the rst six mixer channel names.

Page 60Aviom A640 Personal Mixer User Guide

Edit Channel Names

Kick

1

Snare

2

Cymbals

3

Piano

4

Bass

5

Vocal 1

6

Back

• Scroll to select a channel name to edit.

• Press either encoder button to begin editing its name.

Edit Channel 4 Name

E l e c P n o

Cancel Clear Save

• The text editing window opens.

• Turn the left encoder to scroll through the eight text cells.

• Turn the right encoder to select a letter, number, or special character from the list.

• To nalize the name, press the SaVe button.

To clear all characters from the current channel name, press the cle aR button.

To exit the name editing elds without changing the current channel name, press the can cel button.
At this point you may select a dierent channel name for editing or use the ba c k button to return to
the main Edit Channel Names window.

Channel Names Using Dante

The A640, when used with the D800-Dante A-Net Distributor (with Aviom v4.00 rmware or newer
and Dante rmware 4.2.3.13 or newer), can load channel names from a D800-Dante that is part of a
Dante network. Channel names can be loaded as a one-time command or they can be synced over
the Dante network so that any changes made to the D800-Dante A-Net Distributor’s channel names

Page 61Aviom A640 Personal Mixer User Guide

from within the Dante Controller software (available from the Audinate website) can be instantly
updated on the A640 Personal Mixer.

Loading Channel Names One Time from a D800-Dante

To load channel names for each A640 mix channel while connected to a D800-Dante A-Net
Distributor:

• First, enter channel names for the D800-Dante in Dante Controller from its Device View.

• From the Edit Channel Names window on the A640, select Load Names from D800-
Dante from the menu.

• When the conrmation message appears, select Ye S to load the channel names.

• Names are loaded from Dante into the A640’s mixer channels.

• To cancel the process without loading names, press the no button to return to the Edit
Channel Names window.

The I/II switch on the front panel of the D800-Dante must be in the II position
to use this feature for each port where an A640 is connected.

Once names are loaded from Dante, press any channel button to exit the menu and begin mixing.

Editing channel names in Device View for a D800-Dante as seen in the Dante Controller software

If you need to alter any of the channel names after loading them from the D800-Dante with the one­time command, use the Manual Edit option, described above. If you change the channel mapping
after loading names from Dante using the one-time command the channel names will not update.
Use the Load Names from D800-Dante again or set the A640 to load channel names in sync.

Page 62Aviom A640 Personal Mixer User Guide

The D800-Dante’s Disable switch found in the rst set of DIP switches on the
rear panel) must be in the down position (Dante enabled) to load channel
names from a Dante network.

The Dante interface on a D800-Dante A-Net Distributor must be enabled to get channel names via Dante.

Loading Dante Channel Names In Sync

Channel names loaded into the A640 while in sync with a D800-Dante will update any time the
D800-Dante’s channel names are changed in the Dante Controller software. To sync and load channel
names for each A640 mix channel while connected to a D800-Dante A-Net Distributor:

• First, enter channel names for the D800-Dante in Dante Controller from its Device View.

• From the Edit Channel Names window on the A640, select Auto-Sync with Dante from
the menu.

• Select YeS to load the channel names and activate sync via Dante.

• Names are loaded from the D800-Dante over the Dante network and will update as needed
if any changes are made from within Dante Controller.

• To cancel the process without loading names, press the no button to return to the Edit
Channel Names window.

Once channel names are loaded from Dante, press any channel button to exit the Edit Channel
Names menu and begin mixing. If any changes to channel names are made in the D800-Dante’s
Device View in Dante Controller, the A640’s channel names will update immediately.

When the Channel Mapping function is used to create a custom conguration for the A640, the
A640’s channel button names seen in the Channel Mapping editor will update whenever mapping
assignment changes occur.

The I/II switch on the front panel of the D800-Dante must be in the II position
to use this feature for each port where an A640 is connected.

Page 63Aviom A640 Personal Mixer User Guide

When setting up an A640 Personal Mixer for use with a Dante network you can set the Auto-Sync
with Dante option to ON without an actual connection to a Dante network. Once the A640 is
connected to a D800-Dante A-Net Distributor that is part of a Dante network, the channel names will
update.

Dante Channel Names and Stereo Links

Dante networking does not support stereo links. When stereo links are set up on the D800-Dante
using its rear-panel DIP switches, the stereo link information is embedded in the Aviom A-Net data
that each Personal Mixer receives. The channel names for stereo pairs will adopt the odd-numbered
channel’s text (as seen in Dante Controller) and display that on the A640 mix channels.

For example, if you name Dante channels 1 and 2 as “Drums-L” and “Drums-R” in Dante Controller, the
A640 will display the channel name as “Drums-L” when channels 1-2 are stereo linked on the D800­Dante.

Restore Default Names

To reset all channel names and return them to their default settings use the Restore Default Names
command.

• From the Edit Channel Names window, select Restore Default Names from the menu.

• Press either encoder to activate the function.

• Answer Ye S to reset the names or no to return to the Edit Channel Names window without
changing the channel names.

When nished with changes in the Edit Channel Names window, press the Mi xeR Setu p button to
return to the main Mixer Setup menu or press any mix channel button to begin mixing.

Page 64Aviom A640 Personal Mixer User Guide

Channel Mapping

Ch Name Stereo Slot Err

You can assign any of the 64 available A-Net network sources to the A640’s mixer channel buttons
(including the Favorite and Ambience channels) for use with the A640’s Custom mode. User-created
channel maps can be saved to a USB storage device as part of a conguration for backup or for
loading into other A640 Personal Mixers.

To create a custom channel map:

• From the Mixer Setup menu, select the Channel Mapping option by scrolling with either
encoder knob.

• Press the encoder button to activate it.

• A warning message is displayed (a reminder that custom channel mapping only works with
Custom mode) if the A640 is currently set to Pro16 or Default modes.

• The channel list is displayed along with the current channel assignments.

• Scroll with the left encoder to select a mixer channel to edit.

• The selected channel’s current network Slot assignment is highlighted in green.

Channel Mapping

3

Drums

Bass

Gtr 1

Paul Voc

John Voc

Ac Gtr

1

2

4

5

6

Yes

No

No

No

No

No

1-2

3

7

16

15

9

26

DefaultsBack Help

• Turn the right encoder to scroll through a list of the currently available mono and stereo
network Slots (all network Slots already in use will be skipped in the list).

• The edited channel’s highlight changes to orange.

Page 65Aviom A640 Personal Mixer User Guide

Ch Name Stereo Slot Err

Channel Mapping

3

Drums

Bass

Gtr 1

Paul Voc

John Voc

Ac Gtr

1

2

4

5

6

Yes

No

No

No

No

No

1-2

3

7

15

15

9

26

DefaultsBack Help

• Press the right encoder to conrm the change and assign the network Slot to that A640
channel button.

• Continue selecting and editing A640 channel assignments as needed.

• Press the bac k button to exit.

If a mistake is made while editing a channel, right-scroll until the channel assignment highlights in
green; this is the original assignment.

If the Edit Channel Names function is set to sync with names coming from a
D800-Dante on a Dante network, the Name eld in the channel mapping
editor will update when the encoder is pressed to conrm a new network Slot
assignment.

Page 66Aviom A640 Personal Mixer User Guide

Default Slot Assignments

The default network Slot assignments for the A640 channel buttons are shown below for both mono
and stereo channels.

Channel Button Mono Stereo

1 1 1-2

2 3 3-4

3 5 5-6

4 7 7-8

5 9 9-110

6 11 11-12

7 13 13-14

8 15 15-16

9 17 17-18

10 19 19-20

11 21 21-22

12 23 23-24

13 25 25-26

14 27 27-28

15 29 29-30

16 31 31-32

Favorite (F) 33 33-34

Ambience (A) Mic Mic

Mono vs. Stereo

In the channel mapping Slot list, available mono sources appear as single digits; network channels
that are stereo linked appear as pairs (1-2, 17-18, 63-64, etc.). It is important to remember that stereo
links are a global network setting controlled at the network’s input source and are common to all
Personal Mixers in the system. You cannot stereo link channels on the A640 itself.

Page 67Aviom A640 Personal Mixer User Guide

Ch Name Stereo Slot Err

Channel Mapping

1

2

3

4

5

6

Drums

Bass

Gtr 1

Paul Voc

John Voc

Ac Gtr

Yes

No

No

No

No

No

1-2

16

15

26

DefaultsBack Help

Stereo

3

7

Mono

9

To return all channels to their default Slot assignments, press the DeFau ltS soft button and then
choose Ye S to conrm and continue or no to cancel. The default Slot assignments will always reect
the network’s current mono/stereo settings when using this command.

To use the new custom channel map, the A640’s mode must be set to Custom.

Use the File Transfer function to save an A640 conguration to a USB storage
device which will back up a custom channel map. It can also be used to copy a
custom channel map from one A640 to another.

When you save a conguration that contains a custom channel map, it is important to remember
that the mono/stereo status of each channel pair is dependent upon the global link settings that are
currently in use. Loading a saved conguration into an A640 connected to an Aviom A-Net network
with dierent stereo link settings may aect what you hear on each mixer channel.

Channel Mapping Errors

Any channel mapping errors are indicated with a red “!” in the Err column of the channel table. As an
example, a channel mapping error could occur if a channel map has network Slot 1 assigned to A640
mixer button #1 and network Slot 2 assigned to A640 mixer button #2. If network Slots 1-2 are then
stereo linked, that channel mapping will cause the Error warning to appear. Both channel buttons are
not permitted to use the same 1-2 stereo channel pair simultaneously.

Mix presets and congurations cannot be saved until the channel mapping
error is corrected. .

Page 68Aviom A640 Personal Mixer User Guide

Ch Name Stereo Slot Err

Channel Mapping

Ch Name Stereo Slot Err

1

2

4

5

6

3

Drums

Bass

Gtr 1

Paul Voc

John Voc

Ac Gtr

Yes

No

No

No

No

No

1-2

1-2

7

15

15

9

26

!

!

DefaultsBack Help

Adding a stereo link creates a channel conict

In systems using the Intercom feature, the Intercom’s Broadcast Slot should not be assigned to an
A640 mix channel button in a Custom Mode channel map. The channel list will indicate the current
Broadcast Slot in red text; no monitor mix audio will be heard on the Broadcast Slot.

Channel Mapping

1

2

4

5

6

3

Drums

Bass

Gtr 1

Paul Voc

John Voc

Ac Gtr

Yes

No

No

No

No

No

1-2

1

1-2

2

7

15

15

9

26

64

Assigning the Broadcast Slot (64) to a mix channel button will cause that channel to have no audio output.

Disable an A640 Mix Channel Button

It is possible to disable an A640 mix channel button by setting it to have no network Slot assignment.
To do this:

• Follow the previous steps to begin editing a channel map.

• Select the A640 mix channel to be disabled.

• Scroll the Slot assignment list to the left using the right encoder until the double dash “- -”
character appears.

DefaultsBack Help

Page 69Aviom A640 Personal Mixer User Guide

Ch Name Stereo Slot Err

Channel Mapping

3

Drums

Bass

Gtr 1

Paul Voc

John Voc

Ac Gtr

1

2

4

5

6

Yes

No

No

No

No

No

1-2

3

7

15

9

- -

26

DefaultsBack Help

• Press the right encoder button to complete the assignment.

• Press the bac k soft button to exit.

The channel’s-Volume, Pan, Treble, Bass, and EFX settings are reset whenever a channel is disabled.

Any mix channels set to have no network Slot assignment cannot be selected
or edited while mixing on the A640 in Custom mode. An error message will be
displayed whenever an unassigned mix channel button is selected on the A640.
The channel button’s green LED will also ash as a reminder.

Channel Map settings are saved and recalled as part of a conguration. See “Save a Conguration” on
page 52.

Page 70Aviom A640 Personal Mixer User Guide

Aux Mix Setup

The A640 has a dedicated mono XLR Aux Mix output with its own volume control that can be used to
send a separate line-level mono mix to a wireless transmitter, bass shaker such as Aviom’s BOOM-1,
recording device, etc. The Aux Mix can be set to output the same audio channels as the main stereo
mix (automatically converted to mono) or it can use a custom user-dened set of channels.

The Aux Mix always uses the same individual channel volume, and Treble/Bass
tone settings as set in the main stereo mix. The Master EQ settings are the same
in the main and aux mixes.

Panning is ignored in the Aux Mix. The eects (EFX) levels are also ignored.

Select Aux Mix Setup from the Mixer Setup window and press either encoder button to access the
Aux Mix settings.

Aux Mix Audio Source

Two options are available for selecting the audio that is output from the Aux Mix jack on the rear of
the A640—the mono version of the main stereo mix or a custom subset of those channels selected
by the user.

To choose the source for the Aux Mix output from the Aux Mix Setup options:

• Select the Audio Source option by scrolling with either encoder knob.

• Press either encoder button to activate it.

• The audio source options are displayed.

• Scroll to choose Main (Mono) Mix or Aux Mix.

• Press the encoder button to activate your choice.

To exit without making a change, press the back button.

Aux Mix Channel Settings

When Aux Mix is selected as the audio source for the Aux Mix output, you can choose to activate any
combination of A640 mixer channels to be assigned to the XLR Aux Mix output.

The Ambience Mic channel is available to be used as a component of the Aux Mix. This can be
especially useful in Custom mode where the Ambience Channel can be assigned to any available
network Slot.

Intercom audio is not available as a source to be included in the Aux Mix.

In Pro16 and Default modes, mix channels 1-16 are available. The Favorite channel is a copy of an

Page 71Aviom A640 Personal Mixer User Guide

existing mix channel and will not appear as a separate entry in the channel list when creating a
custom Aux Mix.

When using Custom mode, the Favorite channel is replaced with a fully-assignable channel #17
which will be available for inclusion in the Aux Mix.

To create a custom set of channels for the Aux Mix output:

• Select the Aux Mix option as the source (see the steps above).

• From the Aux Mix Setup menu choose Aux Mix Channel Settings.

• Press either encoder button to activate it.

• A list of all available mix channels is displayed

• Scroll with either encoder to select a channel

• Press either encoder to activate a channel and make it part of the Aux Mix

• The text in the on-screen table is set to On in green for each active channel.

• Repeat the process for any other channels you want to add to the custom Aux Mix.

• Press bac k to exit when done assigning channels to the Aux Mix.

Aux Mix Channel Select

Kick

1

Snare

2

Hats

3

Toms

4

Bass

5

Piano

6

On

On

O

O

On

O

Back All O All On

Any combination of channels may be sent to the Aux Mix

When using stereo channels in Pro16 mode, note that each side of the stereo signal may be added to
or removed from the Aux Mix individually. For example, if channels 1 and 2 are stereo linked, you can
decide to include channel 1 but not channel 2 in the Aux Mix output.

Two handy utility functions are also available while editing. Press the all o F F soft button to set
all mix channels to O, removing them from the Aux Mix. Press the al l on soft button to add all
channels to the Aux Mix.

Press the bac k soft button to return to the Aux Mix Setup menu when done editing.

Muting a channel in the main stereo mix also mutes the channel in the Aux Mix.

The Aux Mix settings are saved and recalled as part of a conguration.

Page 72Aviom A640 Personal Mixer User Guide

Intercom

The Intercom feature on the A640 allows you to transmit audio from one user’s mixer (such as a
musical director) to all other A640 users. It simplies the process of communicating with a group
of performers wearing headphones or in-ear monitors. Use it for rehearsal, song count-os,
performance cues, musical instructions, etc.

The Intercom feature requires the use of a D800 or D800-Dante A-Net Distributor (with Aviom
rmware version 4.00 or newer installed).

Using the Intercom feature along with a D800 requires that the I/II switches
on the D800’s front panel be set to the “II” position for bi-directional
communication.

D800 I/II switches must be set to the “II” position.

There are settings that are specic to each A640 user who will make use of the Intercom as well as
network-wide settings that aect all users.

Intercom Audio Source

The transmit audio source for the Intercom feature can use either the A640’s internal mic or one of
the A-Net network Slots to which an external microphone has been connected. When the Intercom is
engaged, this is the source that the speaker will be using to transmit audio over the network to other
performers listening on their A640 Personal Mixers.

To choose the Intercom’s audio transmit source:

• Choose Intercom in the Mixer Setup menu; press the encoder button to open the options.

• Select the Audio Source option by pressing either encoder button.

• Scroll to select Internal Mic or any one of the 64 network Slots (a warning message will be
displayed if you select a Slot that is already in use for monitor mixing).

• To prevent an A640 from broadcasting over the Intercom, choose Listen Only.

• Press either encoder button to conrm the selection.

Page 73Aviom A640 Personal Mixer User Guide

• The display returns to the main Intercom window and the selected source is shown within
the Audio Source text.

Intercom Audio Source

Listen Only

Internal Mic

Slot 1

Slot 2

Slot 3

Slot 4

Back

Selecting a transmit source for the Intercom

The network’s current Broadcast Slot will be shown in red text in the Intercom Audio Source list. The
Broadcast Slot cannot be assigned as an audio source for the Intercom.

The Intercom transmit source can be set independently for each A640 Personal Mixer in the system.
The current setting for the Intercom Audio Source is displayed whenever you hold down the

in teRc oM button.

Intercom

Receive
Volume

D800 Port 1

You are the speaker.

Audio Source = Internal Mic
Intercom Broadcast Slot = 64

The current Audio Source setting is displayed whenever the Intercom button is held.

If no source is selected, the source reads Disabled, Listen Only.

Intercom Broadcast Slot

The A-Net network always uses one of its 64 available network Slots as the global Intercom
communication channel to send intercom audio to all A640s connected to the D800. Choosing a

Page 74Aviom A640 Personal Mixer User Guide

Broadcast Slot from the A640 sends a command to the D800 A-Net Distributor which then broadcasts
this information throughout the network to all connected A640 Personal Mixers. When the int eRco M
is engaged on an A640, all A640 Personal Mixers will hear intercom audio from that user via the
selected Broadcast Slot.

The Broadcast Slot can be set to o (None) or to any one of the 64 network Slots.

The A640 must be connected to a D800 or D800-Dante A-Net Distributor to
access the Intercom Broadcast Slot settings.

To set the global Intercom Broadcast Slot source from the Intercom window:

• Scroll to select the Broadcast Slot option in the Intercom settings.

• Press either encoder button to open the channel list.

• Scroll with the encoders to select None or any one of the 64 network Slots.

• Press either encoder button to conrm the selection.

• The display returns to the main Intercom window and the selected Broadcast Slot source is
shown within the Broadcast Slot text.

Broadcast Slot

Slot 30

Slot 31

Slot 32

Slot 33

Slot 34

Slot 35

Back

Selecting Slot 32 as the Intercom Broadcast Slot for all A640 users

When choosing None as the Broadcast Slot option, Intercom communication is disabled and none of
the A640 Personal Mixers will be allowed to broadcast Intercom audio to the other A640 users in the
network.

Choosing a network Slot to be used for the Intercom broadcast function
disables all standard audio trac for that Slot (or stereo pair if a stereo link is
set).

Always be sure to choose a Broadcast Slot that will not interfere with audio
sources already being used for monitor mixing.

Page 75Aviom A640 Personal Mixer User Guide

Only one A640 Personal Mixer needs to set the global Broadcast Slot. The selected Slot number
assignment is stored in the D800/D800-Dante and the Broadcast Slot information is shared by all
A640 Personal Mixers until such time that it is changed. All A640 users will see the current Broadcast
Slot number in the A640 display when their in teR coM button is held down.

Intercom

Receive
Volume

D800 Port 1

You are the speaker.

Audio Source = Internal Mic
Intercom Broadcast Slot = 64

The global Broadcast Slot has been set to Slot 64.

Page 76Aviom A640 Personal Mixer User Guide

Mixer Mode

The A640 Personal Mixer can operate in one of three modes —Pro16, Default, or Custom. Each mode
aects how the A640 uses the A-Net network’s incoming multi-channel digital audio data. All A-Net
network channels (also referred to as network Slots) are always present in the A-Net data stream
and are available to all Personal Mixers in the system. The three mixer modes simply tell each A640
Personal Mixer how to use them and map them onto the A640’s mix channel buttons.

Mode

Pro16 - 16 mono ch

Default - 16 stereo ch

Custom

Back Help

The currently selected mode is shown in the Mode eld when you open the Mode options from the
Mixer Setup menu. If it is not already selected, scroll to the Mode option. Press either encoder button
to access the Mixer Mode settings.

To change the A640’s current operating mode, scroll with either knob to select the desired option.
Press the encoder to activate it. All mix settings will be cleared. Answer Yes to continue or No to
return to the Mode settings options. Pressing the encoder activates the selected mode and exits to
the main Mixer Setup menu.

Changing the A640’s operating mode will clear the current mix settings
(Volume, Pan, Bass, Treble, and EFX) for all channels as well as the current
Master EQ settings.

Legacy Devices

When the A640 is connected to a legacy device or system that outputs the original 16-channel Pro16
version of A-Net, you cannot access Default or Custom modes. Using the Default and Custom modes
requires that the A640 is connected to a system that is using the Pro16e (64-channel) version of
A-Net.

Legacy devices include:

• AN-16/i Input Module (version 1)

• AN-16/i-M Mic Input Module

Page 77Aviom A640 Personal Mixer User Guide

• Y1 A-Net card for Yamaha devices

• A-Net console cards manufactured by Aviom partners

• A-16D and A-16D Pro A-Net Distributors

• A-16II Personal Mixer

If the system includes a mix of Pro16 and Pro16e devices, the higher channel count Pro16e version of
A-Net is used. Examples include:

• AN-16/i Input Module (version 1) connected to a D400 or D800 A-Net Distributor

• Y1 A-Net card connected to a D400 or D800 A-Net Distributor

• AN-16/i v.2 Input Module connected to an A-16D or A-16D Pro A-Net Distributor

Getting Help

Press the He lp button while the Mode options are displayed to open an overview of the three
available modes.

Mode Help

Pro16 maps the rst 16

network channels in numerical order
to A640 buttons 1-16.
All other network channels are ignored.

Exit Next

Move through the Help screens with the next button; a ba c k button will appear as needed when
multiple Help windows are available. Close the Help window and return to the main Mode settings
by pressing the ex i t button.

The Mode Help screens are not available when connected to a legacy Pro16
A-Net device.

Pro16 Mode - 16 mono channels

When the A640 is in Pro16 mode, the rst 16 incoming network Slots are assigned in sequential order
to the 16 mix channel buttons. This mode is ideal for systems that use a single 16-channel analog
input module or digital console card.

Page 78Aviom A640 Personal Mixer User Guide

Each A640 mixer channel button (shown in blue in the graphic below) can host one mono audio
source. All other network channels (Slots) from 17-64 are ignored (shown in gray in the table below).

Incoming A-Net Network Slots

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 F A

Copy Mic

A640 Personal Mixer Channel Buttons

Mapping incoming A-Net network channels to the A640 mixer buttons in Pro16 mode.

(Note: F is the Favorite channel; A is the Ambience Mic channel.)

Any one of the standard mixer channel buttons may be assigned to the A640’s Favorite channel
button, allowing easy access to a frequently-used channel. Hold the FaV oRit e button and press
a mixer channel button to assign it. The Favorite channel’s assignment is saved as part of a
conguration. The Ambience channel always uses the A640’s built-in mic in Pro16 mode.

The maximum number of audio sources you can hear in Pro16 mode is 16 (plus
the internal mic and Intercom audio).

Default Mode - 16 stereo channels

Default mode sets the 16 mix channel buttons on the A640 to stereo. Incoming network channels are
assigned as stereo pairs in sequential order. Network Slots 1-2 are assigned to mixer button #1, Slots
3-4 are assigned to button #2 and so on, up to button #16 which gets network Slots 31-32. Incoming
A-Net network Slots 33-64 are ignored (shown in gray in the table below).

Incoming A-Net Network Slots

33-34 35-36 37-38 39-40 41-42 43-44 45-46 47-48 49-50 51-52 53-54 55-56 57-58 59-60 61-61 63-64

1-2 3-4 5-6 7-8 9-10 11-12 13-14 15-16 17-18 19-20 21-22 23-24 25-26 27-28 29-30 31-32

↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 F A

Copy Mic

A640 Personal Mixer Channel Buttons

Mapping incoming A-Net network channels to the A640 mixer buttons in Default mode.

(Note: F is the Favorite channel; A is the Ambient Mic channel.)

Page 79Aviom A640 Personal Mixer User Guide

As with Pro16 mode, any one of the standard mixer channel buttons may be assigned to the A640’s

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Favorite channel button, allowing easy access to a frequently-used channel. Hold the FaV oRi te
button and press a mixer channel button to assign it.

Mono vs. Stereo Channels

It is important to understand that the A-Net network controls which incoming channels are mono or
stereo, not the A640 Personal Mixer. A stereo link is a global setting available to all Personal Mixers in
an Aviom personal mixing system.

Stereo Links are set up by moving the Stereo Link switches on an analog input device such as an
AN-16/i to the right.

Stereo Links on the AN-16/i Input Module

For a digital console card, such as Aviom’s Y1 card for Yamaha MY devices, a set of eight DIP switches
is used. Console cards built by Aviom partners using Aviom’s A-Net technology also provide stereo
link capabilities.

Stereo Links on the Y1 Yamaha console card

For a system based on a Dante network, the stereo links are set up at the Dante A-Net Distributor
using DIP switches. Stereo Links activated on a Dante A-Net Distributor are made available to all
Personal Mixers connected to its A-Net Out ports.

Page 80Aviom A640 Personal Mixer User Guide

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

Mono Stereo

DIP switches set Stereo Links on the D800-Dante A-Net Distributor

When the global stereo link for any network channel pair is o, the A640 mixer channel is mono.
Default mode uses the left channel of the pair (the odd number) as the mono source, and ignores the
right side audio (the even number).

For example, when the stereo link for channel pair 1-2 is set to o (mono), A640 mixer button #1 will
receive network channel 1 and will ignore network channel 2. The Pan indicator (in Channel View)
shows one Pan position marker. Any audio assigned to channel 2 is not heard.

The following graphic shows the dierences between a mono and stereo channel, as seen in Channel
View.

1

Chan 1

A mono channel (left) has a single Pan indicator and a mono volume level indicator.

A stereo channel (right) has two Pan indicators, a dual level bar, and a Stereo ST con.

1

Chan 1

If a stereo link is set on (stereo) for network channel pair 1-2, two network digital audio signals
are assigned to the rst mixer channel button on the A640 in Default mode. The Pan indicator (in
Channel View) shows two stereo position markers. Stereo channels have dual volume bars and a
stereo indicator [ST} next to the volume bars.

Page 81Aviom A640 Personal Mixer User Guide

If each A640 mixer channel button is assigned a stereo source, you can hear a

Aux Volume Master Volume

Channel

Mix

Names

maximum of 32 channels (16 stereo pairs) in Default mode.

The Ambience mic channel always uses the built-in mic in Default mode.

Favorite Button

As with Pro16 mode, any one of the standard mix channel buttons may be assigned to the A640’s
Favorite channel for easy access. Hold the FaVo Rite button and press any mixer channel button to
assign it. The display will show a conrmation message when the Favorite channel assignment is
changed. The Favorite button always follows the mono/stereo setting of the channel assigned to it.
The Favorite channel’s assignment is saved as part of a mix preset and a conguration.

Master EQ

Favorite has been set to Chan. 13

Trim All

HOLDPRESS

8 9 10 11 12 13 14 15 16 Favorite

Any mix channel may be assigned as the Favorite.

Custom Mode

The A640’s Custom mode allows any of the (up to 64) incoming A-Net network Slots to be assigned
to any A640 mixer channel button. This feature allows each performer in an ensemble to get a set of
channels for their monitor mix that best suits their needs. The rules for stereo and mono channels still
apply—all stereo links are controlled globally at the network’s input source.

Custom mode also allows the Favorite channel and the Ambience mic channel to be used for
network audio, increasing the total number of available mono/stereo mix sources for a monitor mix
from 16 to 18.

Page 82Aviom A640 Personal Mixer User Guide

If each A640 mixer channel button is assigned a stereo source, you can hear a

Network

Channels

(Slots) Input Stereo Source

33-48

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

Organ Botom

maximum of 36 channels (18 stereo pairs) in Custom mode.

Input List

To simplify system setup, create an input list. Print out the channel worksheet and note each source
channel’s network input slot, mono/stereo status, and its name making it easier to create and
manage Custom mode congurations for multiple performers.

Network

Channels

(Slots) Input Stereo Source

1-16

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16







Kick
Snare
Cym & Toms L
Cym & Toms R
Bas
Paul Vocal

Piano L
Piano R
John Vocal
Gerge Vocal
E Gtr 1 L
E Gtr 1 R
Ac Gtr
E Gtr 2
Organ Top

The rst 16 channels of an input list

A blank, full-size version of the input list appears at the end of this document. The input list is also
available on the Aviom website (www.Aviom.com).

Clear Current Mix

The A640 Personal Mixer oers a simple shortcut function to quickly reset the current mix to its
default settings—Clear Current Mix. The function clears the currently active mix but does not aect
any mixes saved as presets in the A640. It also has no aect on any mix presets saved as part of a
conguration on a USB storage device.

Using this command:

Page 83Aviom A640 Personal Mixer User Guide

• Sets all mix channel volumes to zero.

• Centers the Pan for mono channels.

• Sets the Pan to fully Left/Right for stereo channels.

• Sets the Treble and Bass tone controls to minimum for all channels.

• Sets the Eects (EFX) amount to minimum for all channels.

• Clears all channel mutes.

• Sets the Ambience Mic to o.

• Sets the Ambience Mic channel volume to zero.

• Sets the Intercom receive volume to zero.

• Turns o the Intercom.

• Resets the Master EQ Treble, Bass, and Enhance to their defaults.

• Resets the Aux Mix to its default, the Main Mix and sets any individual channels On/O
settings to ‘O.’

To clear and reset the currently active mix:

• From the main Mixer Setup window, scroll to choose Clear Current Mix.

• Press the encoder button to activate the function.

• A warning message appears in the window.

• To clear the mix press the Ye S button.

To exit without clearing the current mix, press the no button to return to the main Mixer Setup
menu.

Page 84Aviom A640 Personal Mixer User Guide

Edit Mixer Name

Each A640 Personal Mixer in a system can be given a unique 12-character name. The mixer name will
be displayed on the Master EQ screen, in the About This Mixer window, and to other A640 users when
using the Intercom feature. Use the Edit Mixer Name function to dene a name for each A640.

• From the main Mixer Setup window, scroll to choose Edit Mixer Name.

• Press either encoder button to begin editing the text.

• The editing window opens.

• Scroll through the twelve text cells with the left encoder.

• Turn the right encoder to select a letter, number, or special character from the list.

• To nalize the name and exit, press the SaV e button.

To exit the name editing elds without changing the current mixer name, press the ca ncel button to
return to the main Mixer Setup menu.

The mixer name is saved as part of a conguration when using the Save Conguration function.

LCD Backlight Level

The LCD on the A640 Personal Mixer can be set to one of 12 available brightness levels to allow it to
adapt to any performance situation.

To change the display’s brightness:

• From the main Mixer Setup window, scroll to choose LCD Backlight Level.

• Press either encoder button.

• With the LCD Backlight Level window open, turn either encoder to scroll through the 12
brightness levels.

• To exit press the back button to return to the main Mixer Setup menu or press any mixer
interface button to exit directly to mixing.

The LCD’s brightness level is remembered across power cycles and is saved as part of a conguration.

Page 85Aviom A640 Personal Mixer User Guide

Help

The Startup Help gives a brief overview of the main features and functions of the A640 Personal
Mixer. Designed for new users, the A640 will start up with its Help pages displayed each time the
A640 Personal Mixer is power cycled.

Startup Help

Welcome to the Aviom A640!

Press Exit to go directly to mixing.
Turn Startup Help on/o at
any time in the Mixer Setup menu.
Press Next for more.

Setup Exit

Once you are comfortable with the A640 user interface you can turn o the Startup Help.

To turn o Startup Help when the A640 is powered on:

• With the Startup Help displayed on the A640, press the Se tup button.

• The Mixer Setup menu’s Help Option page opens.

• Select Startup Help Enabled.

• Press either encoder button.

• The Startup Help will toggle ON/OFF with each press of the encoder button.

• To exit press the back button to return to the main Mixer Setup menu or press any mixer
interface button to exit directly to mixing.

To turn Startup Help on/o from the Mixer Setup menu:

• From the main Mixer Setup window, scroll to choose the Help option.

• Press either encoder button.

• In the Help options, select Startup Help Enabled.

• Press either encoder button.

• The Startup Help will toggle ON/OFF with each press of the encoder button.

• To exit press the back button to return to the main Mixer Setup menu or press any mixer
interface button to exit directly to mixing.

Next

To jump directly to the Help pages:

• In the Help Options, select Open Startup Help.

• Press either encoder button.

• The Startup Help pages open.

• Press ne xt to continue reading.

• Navigate the Help pages with the back and ne xt buttons, or press ex it to start mixing.

The Startup Help on/o state is remembered across power cycles.

Page 86Aviom A640 Personal Mixer User Guide

Restore Defaults

To reset the A640 Personal Mixer to the factory default settings, use the Restore Defaults function.

To reset an A640:

• Choose Restore Defaults from the Mixer Setup menu.

• Press either encoder button.

• At the warning message prompt choose Ye S to continue or no to cancel.

• After choosing Yes, the default settings are restored.

• Press any button on the A640 to begin mixing again.

Using the Restore Defaults function resets the following:

• Mode: Pro16

• Channel selected: 1

• Last used preset: 1

• Master Treble: centered

• Master Bass: centered

• Master Enhance: 0

• Favorite channel: 1

• Channel settings:

ཌྷ Volume: 0
ཌྷ Mute: O
ཌྷ Pan: centered for mono channels, fully spread for stereo channels
ཌྷ Treble: 0
ཌྷ Bass: 0
ཌྷ EFX: 0

• Ambience: O

• Ambience On Volume: 0

• Group settings: no groups

• Intercom Source: Listen Only

• Aux Out: Main (Mono) Mix

• Aux Mix channels: all O

• Intercom Volume: 0

• Dante Label Auto-sync: O

• Channel Names: Chan 1, Chan 2, etc.

• Mixer Name: A640

• Channel Mapping: identical to Default Mode, plus channel 17 is mapped to Slots 33&34

• Startup Help screen: Enabled

• Last view screen: Channel View

• LCD Backlight Level: Maximum

• All presets are overwritten with default data

About This Mixer

To check the current rmware version of an A640 Personal Mixer:

Page 87Aviom A640 Personal Mixer User Guide

• From the main Mixer Setup window, scroll to choose About This Mixer.

• Press either encoder button.

• The A640’s Mixer Name and rmware info is displayed.

• To exit, press any interface button to return to the main Mixer Setup menu or press any
mixer interface button to exit directly to mixing.

Information about the system’s A-Net Distributor is also provided:

• D400 and legacy A-16D Pro models are shown generically as Aviom A-Net Distributor.

• D800 and D800-Dante A-Net Distributors updated to v4.00 rmware or above will include
the version number of the Aviom rmware that is currently installed.

• D800 and D800-Dante A-Net Distributors with non-updated rmware are shown as Aviom

A-Net Distributor.

• If a legacy Pro16 A-Net input device is connected via a legacy A-Net Distributor such as the
A-16D Pro, an Aviom Legacy Device will be reported.

Page 88Aviom A640 Personal Mixer User Guide

Personal Mixing System Setup

This section explains how the A640 Personal Mixer integrates with other Pro16 and/
or Pro16e A-Net devices (sold by Aviom or third-party partners) to create a personal
mixing system. See the detailed User Guides that came with the Aviom products
mentioned in this section for complete information about their use, features, and
setup.

The Pro16 version of the Aviom A-Net protocol supports 16 total input sources while
the enhanced Pro16e version of the protocol supports up to 64 input sources. The
Pro16e version of A-Net is always output by the AN-16/i v.2, and the D400, D400­Dante, D800, and D800-Dante A-Net Distributors.

Adding the A640 to a 16-Channel System

The A640 Personal Mixer can be added to existing 16-channel personal mixing systems that use
the A360 Personal Mixer, A320 Personal Mixer, and/or A-16II Personal Mixer. These systems use the
same basic layout. One input device with sixteen input sources (an analog AN-16/i Input Module
or a digital console card) is used to generate a Pro16 A-Net digital signal which is connected to the
Personal Mixers by using an A-Net Distributor such as the D400, D800, or A-16D Pro for parallel
connections and power over A-Net.

An A-Net Distributor simplies the setup or expansion of an existing personal mixing system with
A640 Personal Mixers. Using one or more A-Net Distributors allows any number of A640 Personal
Mixers to be integrated into a personal mixing system along with A360, A320, and A-16II Personal
Mixers. The A640 Personal Mixer is powered over the Cat-5 cable when connected to an A-Net
Distributor.

The A640 should be set to Pro16 mode when it is used in a Pro16 personal mixing system with
only 16 input channels. This maps each of the 16 incoming sources to the A640’s channel buttons
in numerical order. See “Mixer Mode” on page 77 for more information about the A640’s mode
settings.

Page 89Aviom A640 Personal Mixer User Guide

The following diagram shows a typical 16-channel system with one A-Net Distributor and multiple
Personal Mixers connected.

In

Out

D400

Sync

Power

View Mixer Setup

Channel

Mix

Names

Signal/Clip

Save Recall

AmbienceIntercom

Trim All

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

A-Net Offset Base Slot

11733

Stereo / Mono

1 – 16

49

Defeat Stereo Switches

17 – 32

1234

5678

A D400 A-Net Distributor with A-16II, A320, A360, and A640 Personal Mixers connected

e

Aux Volume Master Volume

Master EQ

Page 90Aviom A640 Personal Mixer User Guide

Expanded Systems

There is no limit to the number of Personal Mixers that can be used in an Aviom personal mixing
system. Using two or more A-Net Distributors allows any number of A640 Personal Mixers to be
integrated into a system along with A360, A320, and/or A-16II Personal Mixers.

View Mixer Setup

Channel

Mix

Names

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

View Mixer Setup

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Aux Volume Master Volume

Trim All

Channel

Mix

Names

Aux Volume Master Volume

Trim All

In

Out

Sync

Power

D400

A-Net Offset Base Slot

11733

Stereo / Mono

1234

1 – 16

49

Defeat Stereo Switches

17 – 32

5678

e

View Mixer Setup

Channel

Mix

Names

Master EQ

Master EQ

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

View Mixer Setup

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Trim All

Channel

Mix

Names

Trim All

A-Net Offset Base Slot

11733

Aux Volume Master Volume

Master EQ

Aux Volume Master Volume

Master EQ

Stereo / Mono

1 – 16

49

Defeat Stereo Switches

17 – 32

View Mixer Setup

Channel

Mix

Names

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

View Mixer Setup

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Aux Volume Master Volume

Trim All

Channel

Mix

Names

Aux Volume Master Volume

Trim All

1234

5678

View Mixer Setup

Channel

Mix

Names

Master EQ

Master EQ

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

View Mixer Setup

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

In

Sync

Out

Power

Trim All

Channel

Mix

Names

Trim All

D400

Aux Volume Master Volume

Aux Volume Master Volume

Master EQ

Master EQ

e

View Mixer Setup

Channel

Mix

Names

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

Aux Volume Master Volume

Master EQ

Trim All

Multiple A-Net Distributors allow more than eight Personal Mixers to be connected simultaneously.

Here, the system has been expanded to accommodate 12 performers and multiple types of Personal Mixers.

Any compatible A-Net Distributor—including the D800, D800-Dante, D400, D400-Dante or A-16D
Pro—may be substituted for the A-Net Distributors shown in the example.

Page 91Aviom A640 Personal Mixer User Guide

Daisy chaining an A640

One A640 Personal Mixer may be added to a daisy chained personal mixing system, but only at the
end of the daisy chain—the A640 has only an A-Net In port and must be the last device in a daisy
chain. Adding more than one A640 Personal Mixer to such a system requires the addition of an A-Net
Distributor.

View Mixer Setup

Channel

Mix

Names

Signal/Clip

Save Recall

AmbienceIntercom

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Favorite

The A640 must be the last device in a daisy chain.

If an A640 Personal Mixer is connected in a daisy chain, an external DC power supply such as the
PS-120 (or international version PS-240) Power Supply is required.

Aux Volume Master Volume

Master EQ

Trim All

Pro16e Personal Mixing Systems

The A640 Personal Mixer can make use of the enhanced version of Aviom’s A-Net protocol, called
Pro16e, which allows up to 64 audio Slots to be included in the pool of network input sources by
using up to four analog input devices, multiple digital console cards from the same clock domain, or
a Dante network.

Each A640 in a personal mixing system may be programmed to use any combination of these
network Slots. The A640 uses its Custom mode to access channel mappings other than the Pro16 or
Default channel layouts. See page 49 for information about the Channel Mapping feature.

Analog Inputs

When using multiple analog input devices for input sources for a personal mixing system, each
device provides one 16-channel bank of Slots to the network (1-16, 17-32, 33-48, and 49-64). The Slot
Range switches on the rear panel of the AN-16/i v.2 control the bank assignment. Up to four analog
input devices may be used to create a pool of 64 input sources. The physical location of the device
within the daisy chain does not matter as long as the Slot Range switch settings are correct.

Page 92Aviom A640 Personal Mixer User Guide

Slot Range Setup

Each analog input module is daisy chained, connecting a Cat-5 cable from its A-Net Out port to the
A-Net In of the next input device in the chain.

1-16

17-32

33-48

49-64

Slot Range switches for each input device in at system are shown.

A legacy Pro16 device may be substituted for the rst bank of 16 channels.

Connect the A-Net Out of the last input device in the chain to the A-Net In of the A-Net Distributor
to send the combined set of 64 network Slots to all connected devices. The Personal Mixers are then
connected to the A-Net Distributor’s A-Net Out ports.

One legacy Pro16 device (analog or digital console card) may be substituted for the rst bank of 16
channels in a daisy chain of input devices. It will automatically default to supplying the rst 16 Slots
to the network pool.

Legacy products such as the A-16II Personal Mixer may be used in a Pro16e-based system with up to
64 input sources, but note that they can only access the rst 16 network Slots. All network Slots from
17 to 64 are ignored.

Page 93Aviom A640 Personal Mixer User Guide

Console Card Inputs

Up to four 16-channel digital console cards may be combined to create a Pro16e A-Net network. The
D800 or D800-Dante A-Net Distributor and the SB4 System Bridge are required to merge the four
separate A-Net data streams into one.

All console cards used in this manner must be connected to the same clock source, either in the
same mixing console or in multiple mixing consoles that are synced via word clock. Failure to sync
the clocks for all console cards will result in digital audio clocking artifacts in the audio.

The A-Net Out from each console card connects to one of the four ports labeled 1-16, 17-32, 33-48,
and 49-64 on the SB4 System Bridge. The SB4 rear-panel ports route the data in groups of sixteen
channels to the SB4’s front-panel A-Net Bridge port which allows a single Cat-5 cable to send all input
sources to the D800.

A-Net data from four console cards create a 64-channel Pro16e network.

The A-Net Bridge port of the SB4 is then connected to the A-Net In port of a D800 A-Net Distributor.
The D800 merges the four data streams into one and outputs one combined set of 64 A-Net Slots
from its front-panel A-Net Out ports.

When using a D800-Dante A-Net Distributor, its Dante Disable switch must
be in the up position to enable the A-Net input of the D800-Dante (only one
interface may be used at a time).

Page 94Aviom A640 Personal Mixer User Guide