Symetrix 460, 460Presentation Audio Mixer User Manual

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Page 1

460 Presentation Audio Mixer

USER GUIDE

Page 2

460 Presentation Audio Mixer User’s Guide

The information in this guide is subject to change without notice. Symetrix, Inc. shall not be liable for technical or editorial errors or omissions contained herein; nor is it liable for incidental or consequential damages resulting from the furnishing, performance, or use of this material.

Mention of third-party products is for informational purposes only and constitutes neither an endorsement nor a recommendation. Symetrix assumes no responsibility with regard to the performance or use of these products.

Under copyright laws, no part of this user guide may be reproduced or transmitted in any form or by any means, electronic or mechanical, without permission in writing from Symetrix, Inc. If, however, your only means of access is electronic, permission to print one copy is hereby granted. Permission to copy the Architects and Engineers Specificiations for written proposals specifying equipment for sound reinforcement systems is, also, granted.

Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies.

Symetrix, Inc.

6408 216th St. SW

Mountlake Terrace WA 98043

USA

Tel: Fax: Web: symetrixaudio.com Email: sales@symetrixaudio.com

425.778.7728

425.778.7727

Page 3

Symetrix 460 Presentation Audio Mixer User’s Guide

What’s Inside

Before You Begin 4

What Ships in the Box 4 Getting Help 4 Optional Accessories 4 Notational Conventions in this User Guide 4 Operator Safety Summary 5 Equipment Markings 5

Product Summary and Features 6

Checklist of Tasks for Hardware Connections and System Setup 7

Making Hardware Connections 8

Overview of Rear Panel Connectors 8 Basic Connection for a Boardroom

Presentation System 10 Connecting a Remote Control for Preset Selection 11 Connecting a Remote Volume Control 12 Connecting Serial Devices 13 Connecting a Panja or Crestron Control System 14 Input and Output Connector Wiring 15 Input and Output Level Strapping 16

Signal Flow Diagram 26

Showing Mono Mic/Line 26 Showing Stereo Mic/Line 27

Troubleshooting 28

Hardware Specifications 30

Architects and Engineers Specifications 32

Warranty 33

Service 34

Where to Get Service 34 In-Warranty Repairs 34 Out-of-Warranty Repairs 34 To Get Your 460 Unit Repaired 34 If You Don’t Have Factory Packaging Materials 34

Declaration of Conformity 35

System Setup 17

Overview of Front Panel 17 How System Setup Works 19 Serial Control Setup and Options Menu 20 Main Menu 22 Front Panel Lock 25

Page 4

Symetrix 460 Presentation Audio Mixer User’s Guide

Before You Begin

| What Ships in the Box

Conventions in this User Guide | Operator Safety Summary | Equipment Markings

What Ships in the Box

The 460 unit

| Getting Help

| Optional Accessories

| Notational

Getting Help

If you have questions beyond the scope of this guide, contact our Technical Services Group in the following

One PS-3 or PS-3E (export version) power supply

(425) 778-7728

8:00 am to 4:30 pm Monday through Friday, Pacific Time

This user's guide

(425) 778-7727

tech@symetrixaudio.com

symetrixaudi

o.com

Optional Accessories

DEL ITEM DESCRI PTION

RC-3 Remote Control Controls one volume channel.

Contact

your dealer or Symetrix for purchasing information.

Notational Conventions in this User Guide

ways:

Note Identifies information that needs extra emphasis. Generally

CAUTION

WARNING

supplies ext

Identifies information that, if ignored, may cause damage to the 460 unit or other equipment in

Identifies information that, if ignored, may be hazardous to

ra information to help you to better use the 460.

your system.

your health or that of others.

CAPS

Controls, switches or other markings on the chassis of the

460.

Bold Face Indicates menu option in the 460 LCD display.

Underline

Indicates topic in a section where you will find additional information.

Page 5

AVIS:

NE PAS OUVRIR

Il ne se trouve a l’interieur aucune piece pourvant entre reparée l’usager.

SEE OWNERS MANUAL. VOIR CAHIER D’INSTRUCTIONS.

S’adresser a un reparateur compétent.

RISQUE DE CHOC ELECTRIQUE

No user serviceable parts inside. Refer servicing to qualified service personnel.

CAUTION

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

DO NOT OPEN

RISK OF ELECTRIC SHOCK

Symetrix 460 Presentation Audio Mixer User’s Guide

Before You Begin

| What Ships in the Box | Getting Help | Optional Accessories | Notational Conventions in

this User Guide | Operator Safety Summary | Equipment Markings

Operator Safety Summary

Follow all warnings and instructions. Install in accordance with the manufacturer’s instructions.

Power Source This product is

intended to operate from a Symetrix PS-3 or PS-3E power supply.

Grounding The chassis of this

product is grounded through the grounding conductor of the PS-3 or PS-3E power cord. To avoid electric shock, plug the power cord into a properly wired receptacle before making any connections to the product. A protective ground connection, by way of the grounding conductor in the power cord, is essential for safe operation. Do not defeat the safety purpose of the grounding plug. The grounding plug has two blades and a third grounding prong. The third prong is provided for your safety. When the provided plug does not fit your outlet, consult an electrician for replacement of the obsolete outlet.

Danger from Loss of Ground If

the protective ground connection is lost, all accessible conductive parts, including knobs and controls that may appear to be insulated, can render an electric shock.

Proper Power Cord Use only the

power cord and connector specified for the product and your operating locale. Use only a cord that is in good condition. Protect the power cord from being walked on or pinched, particularly at the plug, convenience receptacle, and the point where the cord exits from the apparatus.

Operating Location Do not oper-

ate this equipment under any of the following conditions: explosive atmospheres, in wet locations, in inclement weather, improper or unknown AC mains voltage, or if improperly fused. Do not install near any heat source such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Unplug this apparatus during lightning storms or when unused for long periods of time.

Stay Out of the Box To avoid per-

sonal injury (or worse), do not remove the product covers or panels. Do not operate the product without the covers and panels properly installed. Only use accessories specified by the manufacturer. Clean only with a damp cloth.

User-Serviceable Parts There are

no user serviceable parts inside the

460. In case of failure, refer all servicing to the factory. Servicing is required when the 460 has been damaged in any way, such as when a 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.

Equipment Markings

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user of the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product (i.e., this user guide).

CAUTION To prevent electric shock, do not use the polarized plug supplied with the unit with any extension cord, receptacle, or other outlet unless the prongs can be fully inserted.

Page 6

Symetrix 460 Presentation Audio Mixer User’s Guide

Product Summary and Features

YMETRIX

of the presentation system. Two mono mic/line inputs for speech and voice sources, 4 stereo line-level inputs (–10 dBV or +4 dBu) handle a wide range of sources.

Easy Configuration

460 P

RESENTATION

UDIO

IXER

is the hub

Streamlined menus on the front panel LCD to configure mixing, routing, level, dynamics settings, and 8 nonvolatile presets.

Input Controls

2 mono mic/line inputs for speech and voice sources.

4 stereo line-level inputs handle a wide range of sources for easy connections from professional or consumer (–10 dBV) level devices.

Levels from any input to the 2 outputs are separately adjustable.

Fully Assignable Inputs—Stereo input channels can route signal into the 2 internal stereo buses. Both mono input channels, when operating independently, can route their signal into both sides of the stereo bus identically. When operating as a stereo pair, they function like the stereo input channels.

Filtering and Downward Expansion—Mono inputs have 6 dB/octave low pass and high pass filters available at 125 Hz and 8 kHz respectively, plus selectable downward expansion with threshold adjustment.

Output Controls

Dynamics Processing—Choose AGC, compression, or limiting, and set the active threshold. AGC helps maintain a consistent output level. The compressor features a moderately fast attack, slower release, and a moderate compression level. The limiter is peak sensing, with fast attack and release times.

Two independent stereo outputs accommodate routing control for separate playback and voice systems. Flexible remote control options offer easy access to master volume control and preset recall.

Remote Control Options

Tamper-proof

EQ—Each stereo output section has 6 dB/octave shelving filters with a boost/cut range of +/– 12 dB. Each section also has a sweepable parametric equalizer with a +/– 12 dB boost/cut range, 16 Hz to 20 kHz frequency range, and a bandwidth adjustable between 0.05 and 3 octaves.

Gain—Each stereo output has stereo level controls.

Mono/Stereo Selection—Each stereo output may be set to provide two mono sums of the signals assigned to it.

Rear panel RS232 and RS485 ports allow Panja™ or Crestron controllers to select presets, change levels, routing, and other parameters.

Inputs for remote selection of presets.

Inputs for remote rotary pot level controls.

Front panel lockout mode.

Page 7

Symetrix 460 Presentation Audio Mixer User’s Guide

Checklist of Tasks for Hardware

Connections and System Setup

REQUIRED RECOMMENDED OPTIONAL TASK TO DO



S 



HARDWARE CONNECTIONS

SYSTEM SETUP









Connect input devices

Connect output devices

Connect serial devices

Input and output level strapping

Connect remote program change switches

Connect remote volume control pots

Connect to Panja or Crestron control systems

Connect to AC power supply

Assign Device Address S

Assign Serial Port Type S

Select Interface Baud S

Adjust remote control input

CTL Pot Offset , CTL Pot Mult )

(

Select Channels 1&2 Mode

Select FP Control Mode S

Select Powerup State S

Set Input High Pass M

Set Input Low Pass M



For serial devices

For Inputs 1 and 2

SECURITY  Specify Front Panel Lock

S Security Control Setup and Options menu M Main menu



 Test Oscillator* M

 Edit Program Name M

 Specify Control Destination M

Set Input Gate Threshold M

Set Input Gate Depth* M

Set Input Level (Bus 1, Bus 2) M

Set Output Low Shelf M

Set Output Mid Frequency M

Set Output Mid BW M

Set Output Mid Gain M

Set Output High Shelf M

Set Output Dynamics Mode M

Set Output Level M

Select Output Mode M

* Available when Expert is selected for FP Control

Mode in the Serial Control Setup and Options menu.

Page 8

Symetrix 460 Presentation Audio Mixer User’s Guide

Making Hardware Connections

Overview of Rear Panel Connectors | Basic Connection for a Boardroom Presentation

System | Connecting a Remote Control for Preset Selection | Connecting a Remote Volume

Control | Connecting a Panja or Crestron Control System | Connecting Serial Devices |

Input and Output Connector Wiring | Input and Output Level Strapping

MANUFACTURED IN LYNNWOOD, WA. USA FABRIQUE PAR SYMETRIX INC.

CONNECT TO SYMETRIX PS-3 OR PS-3E POWER SUPPLY ONLY

THIS PRODUCT CONTAINS NO USER SERVICEABLE PARTS PAS DES ELEMENTS SERVIABLE PAR UTILISATEUR

RS232 SLAVE PORT

RS232 HOST PORT

REMOTE VOLUME

+10V

RS485

+10V

REMOTE PRESET SELECT

4387 5

STEREO OUTPUTS

STEREO INPUTS

MONO INPUTS

GAIN

PHANTOM

50dB MIC

14dB LINE

PHANTOM

60dB MIC

50dB MIC

14dB LINE

60dB MIC

86745231

Overview of Rear Panel Connectors

CONNECTION CONNECTOR TYPE WHAT IT DOES

Power Input 7-pin DIN female Accepts power only from Symetrix

PS-3 or PS-3E power supply.

RS232 SLAVE PORT DB-9 male Serial data port connects down-

stream 460s.

RS232 HOST PORT DB-9 female Serial data connects remote sys-

tems such as Panja or Crestron.

REMOTE VOLUME Euroblock

RS485 Euroblock RS485 serial data port.

Connections for 2 potentiometers, 10 k to 100 k value, linear taper. Use to remotely control the output level of each output channel of the

460. (This is a DC control signal; there is no audio present here.)

(Select either the RS232 ports or the RS485 port.)

REMOTE PRESET SELECT Euroblock 8 active low inputs for momentary

SPST (single pole single throw) switching to ground.

STEREO OUTPUTS Euroblock Delivers a differential balanced

output at 300 ohms source impedance. The output stage is a pair of opamps, with the (+) and (–) output terminals at 180˚ anti-phase with each other. It emulates a grounded center-tap transformer. The series build-out resistors are 150 ohms in each leg.

If connecting unbalanced sources, see in this section Input and Out

put Connector Wiring. To change the outputs to deliver

–10 dBV levels, see in this section, Input and Output Level Strapping.

Page 9

Symetrix 460 Presentation Audio Mixer User’s Guide

Making Hardware Connections

Overview of Rear Panel Connectors | Basic Connection for a Boardroom Presentation

System | Connecting a Remote Control for Preset Selection | Connecting a Remote Volume

Control | Connecting a Panja or Crestron Control System | Connecting Serial Devices |

Overview of Rear Panel Connectors continued

CONNECTION CONNECTOR TYPE WHAT IT DOES

STEREO INPUTS 5 and 6 Euroblock Balanced inputs intended for

STEREO INPUTS 3 and 4 RCA female Unbalanced inputs intended for

Input and Output Connector Wiring | Input and Output Level Strapping

professional +4 dBu signal levels. (20 k ohms balanced bridging line inputs.)

If connecting unbalanced sources, see in this section Input and Out put Connector Wiring.

To change the inputs to accept –10 dBV levels, see in this section, Input and Output Level Strapping.

consumer devices operating at –10 dBV signal levels.

MONO INPUTS 1 and 2 Euroblock Balanced bridging inputs for the

460. These inputs can accept microphone level signals as well as line-level signals.

12 V phantom powering is available (switched) to these inputs.

GAIN Switches 8-pole DIP switch Adjusts gain for Mono Inputs 1

and 2 to accommodate mic or line-level sources. The dB numbers refer to the amount of gain supplied by the input amplifier.

Setting DIP Switches

SWITCH SWITCH POSITION ACCOMMODATES

Phantom (12 V) DOWN

Condenser microphones and

other devices All switches UP +4 line-level sources 14 dB line gain DOWN –10 dbV line-level sources 50 dB mic gain DOWN For high output mics 60 dB mic gain DOWN For low output mics

Page 10

Symetrix 460 Presentation Audio Mixer User’s Guide

Making Hardware Connections

Overview of Rear Panel Connectors | Basic Connection for a Boardroom Presentation

System | Connecting a Remote Control for Preset Selection | Connecting a Remote Volume

Control | Connecting a Panja or Crestron Control System | Connecting Serial Devices |

Basic Connection for a Boardroom Presentation System

Input and Output Connector Wiring | Input and Output Level Strapping

Connect your line-level sources.

Panja or Crestron

control systems

RS232 SLAVE PORT

RS232 HOST PORT

REMOTE VOLUME

+10V

PowerPoint

presentation

RS485

+10V

REMOTE PRESET SELECT

4387 5

STEREO OUTPUTS

STEREO INPUTS

VCRDVD player

MONO INPUTS

GAIN

PHANTOM

50dB MIC

14dB LINE

60dB MIC

50dB MIC

14dB LINE

PHANTOM

86745231

Connect to AC power

wall playback speakers

Connect outputs to amplifiers, EQs, etc.

voice speakers

amp

lectern mic

wireless mic

Connect microphones. Set the DIP Switches as required.

Page 11

Symetrix 460 Presentation Audio Mixer User’s Guide

Making Hardware Connections

Overview of Rear Panel Connectors | Basic Connection for a Boardroom Presentation System

Connecting a Remote Control for Preset Selection

Input and Output Connector Wiring | Input and Output Level Strapping

You can wire a remote switch to the 460. This allows

you to recall the

8 presets with simple switches.

The 460 s preset prog can be recalled panel REM

aves control settings to 8

rams. These programs

by using the rear

OTE PRESET SELECT connections. There are 8 individual connections.

Each acti

ve low input accepts a momentary contact closure to ground,

causing the 460 to load the

saved preset program.

You can disable remote switching. To do this, see in System Setup, the topic Front P

anel Lock.

Connecting a Remote Switch Controller

Cropped Rear Panel View of 460

REMOTE VOLUME

V0 1

RS485

V 0 1 +

Remote Switch Controller

REMOTE PRESET SELECT

4 38 7 5

Select your preset program

STEREO OUTPUTS

12345678

Page 12

Symetrix 460 Presentation Audio Mixer User’s Guide

Making Hardware Connections

Overview of Rear Panel Connectors | Basic Connection for a Boardroom Presentation System

| Connecting a Remote Control for Preset Selection | Connecting a Remote Volume

Control | Connecting a Panja or Crestron Control System | Connecting Serial Devices

Connecting a Remote Volume Control

| Input and Output Connector Wiring | Input and Output Level Strapping

Each of the two stereo outputs and all inputs may have their gain remotely controlled. You can connect a potentiometer or the Symetrix RC-3 Remote Control to the REMOTE VOLUME

connectors.

Select the Output or Input to Control

From the LCD menu display, select in the Main menu the option CTL Destination. Select mic/line mode, either Separate Mono or Com- bined Stereo, and then select which inputs or outputs to control. You can control one or two ports simultaneously (following choices are found in Separate Mono mode.):

1 Out 1 Gain 2 Out 2 Gain 3 Out 1 and 2 Gain 4 In 1 Gain 5 In 2 Gain 6 In 1 and 2 Gain 7 In 3 and 4 Gain 8 In 5 and 6 Gain 9 In 3 to 6 Gain

Cropped Rear Panel View of 460

RS 232 SLAVE PORT

ICEABLE PARTS ISATEUR

RS 232 HOST PORT

REMOTE VOLUME

+10V

RS 485

CCW

REMOTE PRESET SELECT

Potentiometer

+10 V

14387 5

Remote Volume Inputs Accept DC Control Voltage

Connect a potentiometer or another device which generates voltage between the 10 V output and ground of the 460. The value of the potentiometer isn’t critical; anything between 10 k and 100 k (linear taper) will do. For best accuracy, use the supplied 10 V reference at Pin 1 of the connector to drive the high side of the potentiometer.

Symetrix RC-3

Output of an External Source Can Be Scaled

The LCD menu display has provisions for scaling the output of an external source from whatever it is to 10 V. To do this, see in the section System Setup under the topic Serial Control Setup and Options Menu, the menu options CTL1 and

CTL2 Offset and Mult.

Page 13

Symetrix 460 P resentation Audio Mixer Us er’s Guide

Making Hardware Connections

Overview of Rear Panel Connectors | Basic Connection for a Boardroom Presentation System

| Connecting a Remote Control for Preset Selection | Connecting a Remote Volume Control

Connecting Serial Devices

| Connecting a Panja or Crestron Control System | Connecting Serial Devices

| Input and Output Connector Wiring | Input and Output Level Strapping

You can connect a Panja or Crestron controller/interface or additional 460 units to the 460 Presentation Audio Mixer.

Choose either the RS232 or RS485 ports for connection. See the illustration on this page to view the 2 ways to connect serial devices.

You must assign a device address to each serial device you want to attach to the 460.

The 460 ships with its

device address set at 1.

Assign a Device Address:

1 Connect your serial device to the

460.

2 On the front panel, press and

hold

EXIT

to gain access to the Serial Control Setup and Options menu. The Device Address displ

ays.

3 Rotate

unique number from 1 to 127.

4 Repeat for each serial device you

want to connect to the 460.

ADJUST

to select a

RS 485

AVE PORT

RS 232 SL

RS 232 HOST PORT

RS 232 SL

AVE PORT

RS 232 HOST PORT

RS 232 SL

AVE PORT

RS 232 HOST PORT

REMOTE VOLUME

V0 1 +

REMOTE VOLUME

V0 1 +

REMOTE VOLUME

V 0 1+

V0 1 +

V01+

REMOTE P

8 7

RS 485

REMOTE P

8 7

RS 485

REMOTE P

8 7

RS 232 SL

RS 232 HOST PORT

RS 232 SL

RS 232 HOST PORT

RS 232 SL

RS 232 HOST PORT

AVE PORT

REMOTE VOLUME

V 01 +

REMOTE VOLUME

V 01+

REMOTE VOLUME

V01+

RS 485

V 01 +

V 0 1+

V0 1 +

REMOTE P

8 7

RS 485

REMOTE P

8 7

RS 485

REMOTE P

8 7

Choose the Port Setting:

1 Press

2 Rotate

to display the menu

option Serial Port Type

ADJUST

to select either

RS232 or RS485.

Select the Serial Communications Speed:

1 Press

2 Rotate

3 Press

to display the menu

option Interface Baud

ADJUST

to select either

9600, 19200, 38400, 57600, or 115200 baud.

EXIT

to save settings.

Page 14

Symetrix 460 P resentation Audio Mixer Us er’s Guide

Making Hardware Connections

Overview of Rear Panel Connectors | Basic Connection for a Boardroom Presentation System

| Connecting a Remote Control for Preset Selection | Connecting a Remote Volume Control

| Connecting a Panja or Crestron Control System | Connecting Serial Devices

Connecting a Panja or Crestron Control System

You can control the 460 through the RS232 or RS485 ports using a Panja, Crestron, or other compatible controller or compute

The 460 pa els can be read and displ external remote systems. You can get

from Symetrix the control codes

in the following

• Visit symetrixaudio.com. Go to the product page for the 460 Presentation Locate the file 460 Command Protocol to download.

• Send an email to tech@symetrixaudi Request the file 460 Command Protocol.

| Input and Output Connector Wiring | Input and Output Level Strapping

460

PRESENTATION

AUDIO MIXER

rameters and signal lev-

ayed by

ways:

Audio Mixer.

o.com

SETUP

NEX

ADJUST

T EXITPREVIOUS

2L1R1L

CLIP

LIMIT

-20

3 4

PRESETOUTPUT

SELECT

SAVE

685

COMM

Page 15

Symetrix 460 Presentation Audio Mixer User’s Guide

Making Hardware Connections

Overview of Rear Panel Connectors | Basic Connection for a Boardroom Presentation System

| Connecting a Remote Control for Preset Selection | Connecting a Remote Volume Control

Input and Output Connector Wiring

| Connecting a Panja or Crestron Control System | Connecting Serial Devices

| Input and Output Connector Wiring | Input and Output Level Strapping

Input Connections

These connectors are designed for use with bare wire. Do not tin strand wires before inserting them into the connectors.

For Unbalanced Connections

Connect the (–) input terminal to the source ground at the source.

Feeding unbalanced inputs directly from balanced outputs is not recommended due to the possibility of ground loops. You may want to use the Symetrix 307 isolation transformer to break the ground connection and eliminate the ground loop.

Output Connections

These connectors deliver a differential balanced output signal (mimics a grounded center tap transformer winding).

For Unbalanced Loads

With unbalanced loads, it is preferable to carry the low side of the input all the way back to the ground connection of the source.

Use the (+) output terminal and the ground terminal. Ignore (float) the (–) output terminal.

Balanced Terminal Strip

Balanced Female XLR

Pin 1 = Not Connected Pin 2 = High Pin 3 = Low Shield Tab = Not Connected

Balanced TRS Plug

Tip = High Ring = Low Sleeve = Shield

Unbalanced TS Plug

Tip = High Sleeve = Low + Shield

Unbalanced RCA Plug

Tip = High Sleeve = Low Wire Shield = Not Connected

CONNECTOR CHANNEL

Input

21 3

Input

TIP

RING

SLEEVE

Input

TIP

SLEEVE

Input

Balanced Male XLR

Pin 1 = Circuit Ground Pin 2 = High Pin 3 = Low

Unbalanced TS Plug

Tip = High Sleeve = Shield Wire Low = Not Connected

Output

12 3

Output

TIP

SLEEVE

Page 16

Symetrix 460 Presentation Audio Mixer User’s Guide

Making Hardware Connections

Overview of Rear Panel Connectors | Basic Connection for a Boardroom Presentation System

| Connecting a Remote Control for Preset Selection | Connecting a Remote Volume Control

Input and Output Level Strapping*

| Connecting a Panja or Crestron Control System | Connecting Serial Devices

| Input and Output Connector Wiring | Input and Output Level Strapping

Inputs and outputs can be strapped to deliver +4 dBu or –10 dBV levels. Each of the 4 inputs and outputs has its own jumper, which is located just behind the connector. Change any number of them as required by your application.

To change jumper settings:

1 Disconnect the PS-3/PS-3E

power supply from the 460.

2 Remove the top cover by remov-

ing the 2 screws located at the rear edge of the cover, the 2 screws located at each end of the top cover, and the single hex socket screw at the top center of the front panel.

3 Locate the appropriate jumpers

(which are just behind the connectors) using the illustration on this page.

4 Remove the jumpers and install

them over the desired pins.

Stereo Input 5 and 6 jumpers

(shown in black)

460 Rear Panel

Stereo Output 1 and 2 jumpers

(shown in black)

5 Reverse steps 1 and 2 to reas-

semble the unit.

CAUTION

* This information is provided

for the use of professional service technicians only.

Illustrates how to place jumper to get either a +4 dBu or –10 dBV setting.

Page 17

Symetrix 460 Presentation Audio Mixer User’s Guide

System Setup

Overview of Front Panel | How System Setup Works | Checklist of Tasks for System

Setup | Serial Control Setup and Options Menu | Main Menu | Front Panel Lock

PRESETOUTPUT

SELECT

685

LOAD/ SAVE

COMM

460

PRESENTATION AUDIO MIXER

SETUP

NEXT EXIT

ADJUST

COMP

0 dBu

-20 dBu

CLIP

COMP

0 dBu

-20 dBu

2L1R1L

Overview of Front Panel

CONTROL CONTROL TYPE WHAT IT DOES

SETUP LCD menu display Two line setting shows levels and

settings of selected menu option. These menus control the 460:

Serial Control Setup and Options Menu

Controls settings for: the serial ports, basic or full display of Main menu, stereo or mono mode for mic/line inputs, selection of preset that loads when 460 is powered up, remote control pot calibration. Access this menu by pressing and holding EXIT.

Main Menu

Controls all the other settings for the 460. Access this menu by pressing PREVIOUS or NEXT.

Front Panel Lock Controls access to the 460 settings. To access, press NEXT and PREVIOUS.

OUTPUT LED ladders Displays the level and status of

PREVIOUS Press to select the previous menu

item. Press and hold with NEXT to

access Front Panel Lock feature.

NEXT Press to select the next menu

item. Hold to move through menu items.

Press and hold with PREVIOUS to access Front Panel Lock feature.

EXIT Press to save changes to settings

and exit menus. Press and hold to access the Serial

Control Setup and Options menu.

ADJUST Changes the selected parameter.

each output.

Page 18

Symetrix 460 Presentation Audio Mixer User’s Guide

System Setup

Overview of Front Panel | How System Setup Works | Checklist of Tasks for System

Setup | Serial Control Setup and Options Menu | Main Menu | Front Panel Lock

Overview of Front Panel continued

CONTROL CONTROL TYPE WHAT IT DOES

PRESET LEDs 1 thru 8 Indicates the active preset.

If its LED is slowly flashing, indicates the preset has been edited (settings are different from what was stored).

If 2 LEDs are lit, one quickly flashing and one not, the nonflashing LED indicates the current preset, while the flashing LED indicates the target of a SAVE or LOAD action.

SELECT Turn to choose a preset memory.

LOAD

SAVE

COMM LED light Flashes to indicate serial commu-

Tap twice to load and run a selected preset.

Tap once, then hold to save an edited preset.

nications activity. Use to verify connection to a com-

puter or touchscreen controller/ interface.

Page 19

Symetrix 460 Presentation Audio Mixer User’s Guide

System Setup

| Serial Control Setup and Options Menu | Main Menu | Front Panel Lock

Overview of Front Panel | How System Setup Works

How System Setup Works

Control the 460 by Using These Menus

ACCESS THIS MENU FROM LCD DISPLAY MENU HAS CONTROL SETTINGS FOR

Serial Control Setup and Options Menu Serial ports

Basic or full (expert) display of Main menu

Stereo or mono mode for mic/line inputs

Selection of preset that loads when 460 is powered up

Remote control pot calibration

Main Menu Inputs and outputs

Test oscillator type, frequency, and level

Presets

Front Panel Lock Security

Create Presets to Run On the 460

You can create up to 8 presets or programs to run on the 460 Presentation Audio Mixer.

To create and save a preset:

1 Specify settings for the appropri-

ate menu options in the Serial Control and Options menu and in the Main menu.

2 In the Main menu, under Edit

Pgm Name, give your preset a

unique name (optional).

3 Tap

LOAD/SAVE

hold it again.

then press and

To load a preset:

1 Turn

2 Tap

To select the preset you want the 460 to run when it powers up:

1 In the Security Control Setup

2 Turn

3 Press

The default setting, Last Powerdown, has the 460 load the last preset it used when powered down.

SELECT

from 1 to 8.

LOAD/SAVE

selected preset.

and Options menu, press NEXT to locate Powerup State.

ADJUST desired program or preset number.

EXIT

to save setting and

exit menu.

to choose a preset

twice to run the

to select the

To save an edited preset:

1 Tap LOAD/SAVE once, then hold. For additional information, see in

this section the topic Ov Front Panel.

erview of

Page 20

Symetrix 460 Presentation Audio Mixer User’s Guide

System Setup

| Serial Control Setup and Options Menu | Main Menu | Front Panel Lock

Overview of Front Panel | How System Setup Works

Serial Control Setup and Options Menu

Access this menu by pressing and holding EXIT.

Navigate using

Rotate

ADJUST

PREVIOUS/NEXT

to select a specific value or choice.

To save settings and exit menu, press

PRESS NEXT TO SELECT MENU FEATURE

Device Address 1 to 127 Select a unique device address for each

Serial Port RS232, RS485 Select one.

Interface Baud 9600, 19200, 38400,

CTL1 Pot Offset

CTL2 Pot Offset

EXIT

ROTATE ADJUST TO SELECT VALUE OR CHOICE DESCRIPTION

serial device in the installation.

Select serial communications speed.

57600, 115200

–1.00 to +1.00 Adds an offset to the remote control

input value. Use with a source whose minimum value

does not go to zero or whose maximum value does not go to 10 V.

The number inside the square brackets in the display shows the value that the 460 reads, scaled from 0.00 to 1.00.

The number at the lower left in the LCD display indicates the offset value supplied by ADJUST. Start with this value at

0.00. With the external control at its minimum setting, turn ADJUST so the reading inside the square brackets is

0.00 or as close to it as possible.

CTL1 Pot Mult

CTL2 Pot Mult

0.00 to 4.00 Multiplies the signal from the remote potentiometer to encompass the entire control range required.

The number inside the square brackets shows the maximum value of the remote control signal that the 460 reads, multiplied by the scale factor supplied by ADJUST.

The number at the lower left in the LCD display indicates the multiplier value supplied by ADJUST. With the external signal at its maximum value, rotate ADJUST to make the value shown in the square brackets read 1.00 or as close to it as possible.

Page 21

Symetrix 460 Presentation Audio Mixer User’s Guide

System Setup

| Serial Control Setup and Options Menu | Main Menu | Front Panel Lock

Overview of Front Panel | How System Setup Works

Serial Control Setup and Options Menu continued

PRESS NEXT TO SELECT MENU FEATURE

CH’s 1&2 Mode Combined Stereo Control channels 1 and 2, like one of the

FP Control Mode Basic/Expert Expert mode reveals additional controls

ROTATE ADJUST TO SELECT VALUE OR CHOICE DESCRIPTION

stereo channels, and mix to the left and right buses separately.

Separate Mono Control channels 1 and 2 individually

and mix to the center of the 2 stereo buses.

in the Main menu:

Input Gate Depth

Dynamics Limit Ratio

Dynamics Compress Ratio

AGC Autorelease

Test Oscillator Type

Test Oscillator Frequency

Test Oscillator Level

Powerup State Program 1 to 8,

Last Powerdown

Determines the program loaded when the 460 is powered up.

Last Powerdown selects the last preset run by the 460 when power was removed.

Page 22

Symetrix 460 Presentation Audio Mixer User’s Guide

System Setup

| Serial Control Setup and Options Menu | Main Menu | Front Panel Lock

Overview of Front Panel | How System Setup Works

Main Menu

Access this menu by pressing either

If the Serial Control Setup & Options menu is displayed, press EXIT, then press either PREVIOUS or NEXT.

Navigate using

Rotate

ADJUST

PREVIOUS/NEXT

to select a specific value or choice.

To save settings and exit menu, press

To save an edited Preset, tap SAVE once, then press and hold SAVE.

PRESS NEXT TO SELECT MENU FEATURE

Program 1/Preset 1 (default screen)

IN 1, IN 2 (Inputs 1 and 2)

EXIT

ROTATE ADJUST TO SELECT VALUE OR CHOICE DESCRIPTION

Preset name and number. Turn SELECT to choose a preset from

1 to 8. Tap LOAD/SAVE twice to run the selected preset.

High Pass ON/OFF Attenuates excess low frequency infor-

mation. 125 Hz, 6 dB/octave Use to improve clarity or where the

loudspeaker system can’t reproduce the bass frequencies.

Low Pass ON/OFF Attenuates excess high frequency infor-

mation. 6 kHz, 6 dB/octave Use to quiet a noisy source or to reduce

sibilance from a microphone signal.

Gate Thresh Disabled,

–99.5 dBFS to 0 dBFS

Mutes input when signal level falls below threshold.

Use to quiet noisy sources, or to provide a crude sort of auto-mixing.

Gate Depth* 100 dB to 0 dB Attenuation applied to input signal when

the signal level is below the threshold level.

For microphone signals, try 10 dB rather than off.

For below-threshold signals, the input will be 10 dB weaker.

For signals near the threshold level, the gain change may seem less dramatic (certainly better than on or off).

* Menu option available when Expert is selected for FP Control Mode in the Serial Control Setup and Options menu

Page 23

Symetrix 460 Presentation Audio Mixer User’s Guide

System Setup

| Serial Control Setup and Options Menu | Main Menu | Front Panel Lock

Overview of Front Panel | How System Setup Works

Main Menu continued

PRESS NEXT TO SELECT MENU FEATURE

IN 1, IN 2, IN 3, IN 4, IN 5, IN 6 (Inputs 1 to 6)

Bus 1, Bus 2 Mute, –90 dB to +18 dB Attenuation/gain applied to the input

OUT 1, OUT 2 (Stereo outputs 1 and 2)

ROTATE ADJUST TO SELECT VALUE OR CHOICE DESCRIPTION

signal. The usual setting for this control is 0 dB. Inputs 1 and 2 are universal mic/line

inputs. The preamp gain setting is located on the rear panel.

Input 1 can be ganged with Input 2 for stereo sources. When set for Stereo (in Out 1 Mode), Input 1 mixes left and Input 2 mixes right. In Mono mode, the two inputs mix equally to left and right outputs.

Low Shelf +/–12 dB Bass control for output.

125 Hz, 6 dB/octave

Mid Freq 16.2 Hz to 19.7 kHz Center frequency for midrange control.

Mid BW 0.05 to 3 octaves Bandwidth for midrange control.

Mid Gain +/– 12 dB Parametric midrange control for output.

Hi Shelf +/–12 dB Treble control for output.

8 kHz, 6 dB/octave

Dynamics

Bypass Disables Dynamics processing.

Limit

Thresh 0 dBFS to –99.5 dBFS,

Threshold for output limiter.

Disabled

Ratio* 1:1 (Disabled), 20:1 Ratio for Limiter.

Compress

Thresh 0 dBFS to –99.5 dBFS,

Threshold for output compressor.

Disabled

Ratio* 1:1 (Disabled), 20:1 Ratio for Compressor.

Makeup Gain 0 dB to 24 dB Compressor makeup gain.

* Menu option available when Expert is selected for FP Control Mode in the Serial Control Setup and Options menu

Page 24

Symetrix 460 Presentation Audio Mixer User’s Guide

System Setup

| Serial Control Setup and Options Menu | Main Menu | Front Panel Lock

Overview of Front Panel | How System Setup Works

Main Menu continued

PRESS NEXT TO SELECT MENU FEATURE

OUT 1, OUT 2 continued (Stereo outputs 1 and 2)

AGC

Target Level 0 dBFS to –99.5 dBFS,

Autorel* 0 dBFS to –99.5 dBFS,

ROTATE ADJUST TO SELECT VALUE OR CHOICE DESCRIPTION

Level at which the AGC maintains con-

Disabled

stant signal levels with all program signals.

Usual setting is from –18 dBFS to –25 dBFS.

Auto release level for AGC.

Disabled

Prevents noise pumping. Program level must be above selected

value to trigger AGC action. The usual setting is 20 dB below the

target level.

Ratio 1:1 (Disabled), 20:1 Ratio for AGC Compressor.

Ratios higher than 4:1 are not recommended. A warning symbol appears when ratio is higher than 4:1.

Level Mute, –90 dB to +18 dB Output 1 master gain control.

Mode Stereo, Mono Mono or stereo mode for Output 1.

In mono mode, both channels of an output are the same (left/right mix of the sources).

Test Oscillator Type* Sine, White, Pink Output signal select. The oscillator signal

mixes (it does not preempt) with signals from the other inputs.

Test Oscillator Frequency* 16.2 Hz to 19.7 kHz Oscillator frequency (sine only).

Test Oscillator Level*

Bus 1L Off, 0 dBFS to –99.5 dBFS Oscillator level to Bus 1 Left output.

Bus 1R Off, 0 dBFS to –99.5 dBFS Oscillator level to Bus 1 Right output.

Bus 2L Off, 0 dBFS to –99.5 dBFS Oscillator level to Bus 2 Left output.

Bus 2R Off, 0 dBFS to –99.5 dBFS Oscillator level to Bus 2 Right output.

Edit Pgm Name Use ADJUST to change

Assign the preset a unique name.

character. Use PREVIOUS and NEXT to move cursor.

* Menu option available when Expert is selected for FP Control Mode in the Serial Control Setup and Options menu

Page 25

Symetrix 460 Presentation Audio Mixer User’s Guide

System Setup

| Serial Control Setup and Options Menu | Main Menu | Front Panel Lock

Overview of Front Panel | How System Setup Works

Main Menu continued

PRESS NEXT TO SELECT MENU FEATURE

CTL 1 Destination†

CTL 2 Destination

ROTATE ADJUST TO SELECT VALUE OR CHOICE DESCRIPTION

(Choices when Inputs 1 and 2 are selected Separate Mono in CH’s 1&2 Mode.)

Off, Out 1 Gain, Out 2 Gain, Out 1 and 2 Gain, In 1 Gain, In 2 Gain, In 1 and 2 Gain, In 3 and 4 Gain,

Determines which gain control (or groups of controls) the remote potentiometer is assigned to.

When the display reads Out 1 and 2 Gain, the remote potentiometer controls the output of both stereo outputs simultaneously.

In 5 and 6 Gain, In 3 to 6 Gain

(Choices when Inputs 1 and 2 are selected as Combined Stereo in CH’s 1&2 Mode.)

Off, Out 1 Gain, Out 2 Gain, Out 1 and 2 Gain, In 1 and 2 Gain, In 3 and 4 Gain, In 5 and 6 Gain, In 3 to 6 Gain

† Has priority over CTL2 Destination in such instances when CTL1 and CTL2 are set to control the same port (ie., when CTL1 is set

to In 3 and 4 Gain and CTL2 is set to In 3 and 4 Gain).

Front Panel Lock

To gain access to this security feature, press

To save settings and exit menu, press

To unlock the front panel, press

MENU FEATURE

EXIT

ROTATE ADJUST TO SELECT VALUE OR CHOICE DESCRIPTION

Front Panel Lock Unlocked

Save Program Prevents saving a program (preset).

All Except Load Prevents changing the parameters of a

All Unit is locked from use.

and

NEXT for 5 seconds

, then select Unlocked.

preset. Only can load a preset.

Page 26

Symetrix 460 Presentation Audio Mixer User’s Guide

Signal Flow Diagram

| SHOWING MONO MIC/LINE | SHOWING STEREO MIC/LINE

STEREO 6

INPUT R

BAL

STEREO

GAIN 2

STEREO 6

INPUT L

BAL

STEREO

GAIN 1

STEREO 5

INPUT R

BAL

STEREO

GAIN 2

STEREO 5

INPUT L

BAL

STEREO

GAIN 1

STEREO 4

INPUT R

UNBAL

STEREO

GAIN 2

STEREO 4

INPUT L

UNBAL

STEREO

GAIN 1

STEREO 3

INPUT R

UNBAL

STEREO

GAIN 2

STEREO 3

INPUT L

UNBAL

STEREO

GAIN 1

GAIN

MONO 2

INPUT

MIC / LINE

PREAMP

HIPASS / LOPASS /

GATE

GAIN

MONO 1

INPUT

MIC / LINE

PREAMP

HIPASS / LOPASS /

GATE

GAIN

SUM

MID FREQ

LO SHELF

HI SHELF

or COMPRESS

LIMIT or AGC

GAIN

COMBINE

MONO

SUM

MID FREQ

LO SHELF

HI SHELF

or COMPRESS

LIMIT or AGC

GAIN

STEREO

OUT 2

SUM

MID FREQ

LO SHELF

HI SHELF

or COMPRESS

LIMIT or AGC

GAIN

COMBINE

MONO

SUM

MID FREQ

LO SHELF

HI SHELF

or COMPRESS

LIMIT or AGC

GAIN

STEREO

OUT 1

Page 27

Symetrix 460 Presentation Audio Mixer User’s Guide

Signal Flow Diagram

| SHOWING MONO MIC/LINE | SHOWING STEREO MIC/LINE

STEREO 6

INPUT R

BAL

STEREO

GAIN 2

STEREO 6

INPUT L

BAL

STEREO

GAIN 1

STEREO 5

INPUT R

BAL

STEREO

GAIN 2

STEREO 5

INPUT L

BAL

STEREO

GAIN 1

STEREO 4

INPUT R

UNBAL

STEREO

GAIN 2

STEREO 4

INPUT L

UNBAL

STEREO

GAIN 1

STEREO 3

INPUT R

UNBAL

STEREO

GAIN 2

STEREO 3

INPUT L

UNBAL

STEREO

GAIN 1

MONO 2

INPUT

MIC / LINE

PREAMP

HIPASS / LOPASS /

GATE

STEREO

GAIN 2

MONO 1

INPUT

MIC / LINE

PREAMP

HIPASS / LOPASS /

GATE

STEREO

GAIN 1

SUM

MID FREQ

LO SHELF

HI SHELF

or COMPRESS

LIMIT or AGC

GAIN

COMBINE

MONO

SUM

MID FREQ

LO SHELF

HI SHELF

or COMPRESS

LIMIT or AGC

GAIN

STEREO

OUT 2

SUM

MID FREQ

LO SHELF

HI SHELF

or COMPRESS

LIMIT or AGC

GAIN

COMBINE

MONO

SUM

MID FREQ

LO SHELF

HI SHELF

or COMPRESS

LIMIT or AGC

GAIN

STEREO MODE.

STEREO

OUT 1

CONFIGURATION

WITH INPUTS

1 AND 2

IN COMBINED

Page 28

Symetrix 460 Presentation Audio Mixer User’s Guide

Troubleshooting

SYMPTOM PROBABLE CAUSE / WHAT TO DO

No output signal Check cables and connections to see if:

Outputs are driving inputs and inputs are fed from outputs. Signal coming from the source(s) and that it is getting to the 460.

The signal chain after the 460 is functioning. Check to see that the LCD display is illuminated. If signal is present, and the downstream system is operative, check level

settings at inputs and outputs to ensure that they are not muted or attenuated sufficiently to make the 460 appear dead.

Hum or buzz in output Check input connector wiring.

Check output connector wiring. If present in Inputs 3 or 4, try connecting the chassis of the source equip-

ment to the chassis of the 460. Check for a ground loop problem. Inspect related system equipment

grounding to see that all system components are on the same AC ground.

Distortion Check input signals for distortion.

Check if input signal is too hot. Check if output signal is too hot. Use the OUTPUT LED meters. Ensure that something downstream isn’t clipping.

Mic inputs distortion Lower the gain setting for Inputs 1 or 2 (applicable only to Inputs 1 and 2).

Noise (hiss) Check input signal levels and level control settings.

Check to see if the source signal is noisy. Check if there is too much gain downstream by using the output level con-

trols of the 460 at Mute.

Intermittent input signal Check input downward expander (gate). The threshold setting may be too

high.

Output doesn’t get hot enough

Output stripped of dynamics AGC, Compressor, or Limiter working too well.

Check settings on output Compressor or Limiter. Check OUTPUT LEDs for illuminated COMP LED. Check ratio settings; they may be set too high. Check setting for Compress Makeup Gain; it may be too low. Check if Compress Threshold is set too low.

Check setting for Compress Threshold. Check ratio settings. For AGC usage, 3:1 or less are good ratio settings.

Remote volume controls Check CTL Destination settings in Main menu.

Check CTL Offset and Mult in Serial Control Setup and Options menu.

Page 29

Symetrix 460 Presentation Audio Mixer User’s Guide

Troubleshooting

SYMPTOM PROBABLE CAUSE / WHAT TO DO

continued

460 doesn’t respond to remote control (RS232 or RS485)

Remote preset recall doesn’t work

I give up. Let’s go back to square 1. How do I do CTRL, ALT, DEL on this thing?

Check serial communications setting in Serial Control Setup and Options menu:

Check Device Address. Check Serial Port Type.

Check Interface Baud setting. Check if port on the sending device works. Check for flashing COMM LED indicating that 460 is receiving and sending

data.

Check if remote switch provides a momentary contact closure. Check Front Panel Lock setting.

1 Mute the sound system. Are you sure that it is muted? 2 Remove power to the 460 (unplug the DIN connector). 3 Disconnect the outputs. These actions will put the unit into a factory test

mode with a –1 dBSF test signal on the outputs.

4 Press and hold the PREVIOUS, NEXT, and EXIT buttons while simulta-

neously plugging in the power connector.

5 After the LEDs stop flashing, remove and restore power to the 460 once

more.

You will lose all settings in the 460.

Page 30

Symetrix 460 Presentation Audio Mixer User’s Guide

Hardware Specifications

Audio Performance

A/D and D/A Converter Resolution 24 bit Internal Sampling Frequency 48 kHz

Remote Control

Serial Communication Protocols RS232 and RS485 Baud Rates 9600, 19200, 38400, 57600, 115200 Voltage Control for Master Volume Accepts DC signal from remote potentiometer or other device.

Voltage may be offset and scaled to fit requirements. A built-in 10 V reference supply is provided for potentiometer use.

Program Control 8 active-low momentary switch closures select stored programs 1 to 8.

Input Channels 1 and 2

Type Balanced, with additional gain for microphone and 12 V phantom power. Connector Type Euroblock Frequency Response +/– 0.25 dB, 20 Hz to 20 kHz at line level THD+N <0.005% at –1 dBFS Available Preamp Gain Settings 0 dB to +4 dBu line level

14 dB to –10 dBV line level

50 dB microphone level 60 dB microphone level

Dynamic Range 104 dBFS, A-weighted at line level gains

>85 dBFS at +60 dB gain

Maximum Input Level +22 dBu, +4 dB preamp gain

+8 dBu, 14 dB preamp gain –38 dBu, 50 dB preamp gain –38 dBu, 60 dB preamp gain

Preamp CMRR >40 dB at 60 Hz Phantom Power 12 V, switchable High Pass Filter 125 Hz, 6 dB/octave Low Pass Filter 6 kHz, 6 dB/octave Gate Threshold 0 dBFS to –99 dBFS

Input Channels 3 and 4

Type Stereo, unbalanced, nominal –10 dBV line level Connector RCA female Dynamic Range 100 dBFS, A-weighted Frequency Response +/– 0.25 dB, 20 Hz to 20 kHz THD < 0.005% at 0 dBV, 1 kHz

Input Channels 5 and 6

Type Stereo, balanced, nominal +4 dBu line level. Internally switchable to –10 dBV Connector Euroblock Dynamic Range 100 dBFS, A-weighted Frequency Response +/– 0.25 dB, 20 Hz to 20 kHz THD < 0.005% at 0 dBV, 1 kHz Maximum Input Level +22 dBu balanced Common Mode Rejection Ratio >40 dB at 60 Hz

Page 31

Symetrix 460 Presentation Audio Mixer User’s Guide

Hardware Specifications

continued

Output Channels 1 and 2

Type Stereo, balanced, ground referenced (emulates grounded center tap) Connectors Euroblock Source Impedance 300 ohms, balanced Dynamic Range 105 dB, A-weighted, 1 kHz Low Shelving (bass) Control +/– 12 dB, 125 Hz, 6 dB/octave High Shelving (treble) Control +/– 12 dB, 8 kHz, 6 dB/octave Parametric Filter +/– 12 dB, 16.2 Hz to 19.7 kHz, bandwidth 0.05 to 3 octaves Maximum Output +22 dBu balanced

Connections

Power 7-pin DIN female Audio I/O Euroblock and RCA female (Inputs 3 and 4) Serial Data RS232: DB9 female (host), DB9 male (slave)

RS485: Euroblock Remote Preset Recall, Remote Volume Euroblock Inputs 1 and 2, Gain and Phantom Power 8-position DIP switch (4 per channel)

Physical

Size (H × W × D) 1.72 in. x 19 in. x 5 in. (1 rack unit)

4.369 cm x 48.26 cm x 12.70 cm

Weight 3.94 lbs. / 1.77 kg

Electrical

Power Requirements 20 W maximum, Symetrix PS-3 or PS-3E only PS-3 115 V nominal, 60 Hz AC PS-3E 230 V nominal, 50 Hz to 60 Hz AC

In the interest of continuous product improvement, Symetrix, Inc. reserves the right to alter, change, or modify these specifications without prior notice. For the latest specifications, visit symetrixaudio.com. Go to the product page for the 460 Presentation Audio Mixer.

Page 32

Symetrix 460 Presentation Audio Mixer User’s Guide

Architects and Engineers Specifications

The Presentation Audio Mixer (PAM) shall provide all of the following audio mixing, processing and control functions. All mixing, processing and control shall be accomplished through digital signal processing (DSP).

Functions and features provided:

• 2 mono inputs, accept microphone or line level sig-

nals, may be operated ganged stereo or separated mono. These inputs provide 12 V phantom powering.

• 2 stereo inputs, accept consumer (–10 dBV) line-

level signals.

• 2 stereo inputs, accept +4 dBu or –10 dBV line-level

signals.

• 2 stereo outputs, accessible from any input at

+4 dBu or –10 dBV nominal load.

• All inputs have high pass and low pass filtering,

downward expanders (gates) and separate level controls for outputs 1 and 2.

• All outputs have 3-band equalization (low and high

shelves with parametric mid-band).

• All outputs have AGC, compression, or limiting

dynamics processing available.

• All outputs have stereo level controls and may be

remote voltage controlled.

The PAM shall utilize 24-bit Sigma-Delta A/D and D/A converters operating at 48 kHz sample rate. The PAM shall have 4 balanced, symetrical line inputs, 4 unbalanced line inputs, and 4 balanced line outputs. All audio I/O connections shall utilize Euroblock connectors with the exception of the unbalanced line inputs which shall utilize RCA female connectors.

The PAM shall be UL listed and CE approved. The PAM shall occupy one unit of rack space. The PAM shall be the Symetrix 460 Presentation Audio

Mixer.

• Each pair of outputs may be set to receive a mono

sum of its inputs.

• Remote program recall using active-low contact

closures.

• Remote control using RS232 or RS485 protocols.

Page 33

Symetrix 460 Presentation Audio Mixer User’s Guide

Warranty

Symetrix, Inc. expressly warrants to the original purchaser (“Buyer”), subject to the terms and conditions set forth below, that the Product will be free from defects in material and workmanship as a result of normal commercial use for (18) months from the date of shipment.

Symetrix’s warranty obligation is limited to the repair, replacement, or refund at Symetrix’s sole discretion, of the part or parts of the Product which may thus prove defective in materials or workmanship within 18 months from date of shipment under normal use and which our

examination discloses to our satisfaction to be thus defective, provided that Buyer gives Symetrix prompt notice of its warranty claim and satisfactory proof thereof.

Symetrix will make every reasonable effort to ensure that parts are available to support the repair of our products

warranty. In the event that a

under product or component part thereof becomes rable, Symetrix reserves the right to refund a prorated portion of the purchase price in full satisfaction of all warranty claims. A refund of the purchase price is prorated as follows: 100% through year one, 80% through year two, 60% through year three, 40% through year four and 20% through year five.

obsolete, unavailable or irrepa-

Warranty

order to serve you better we request

In that the Buyer shall, prior to shipping Product to Symetrix for warranty service, contact Symetrix and secure a Return Authorization Number that shall be included with the returned Product. This will facilitate our efforts to keep track of your Product and process your warranty repair as quickly as possible. Buyer will prepay all freight charges to ship the Product to Symetrix for warranty inspection and service. This warranty is subject to Symetrix’s inspection of the Product at its facilities and, upon Symetrix’s request, satisfactory proof of purchase (dated copy of original retail dealer’s invoice.)

Symetrix reserves the right to effect repairs to the product with reconditioned components/parts. Products once repaired under warranty will be shipped to Buyer freight prepaid by Symetrix via United Parcel Service (surface) or any similar shipper, to any location designated by buyer within the Continental United States. At Buyer’s request and expense Product will be returned via airfreight. Outside the continental United States, repaired or replaced products will be returned freight collect.

THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE (INCLUDING, WITHOUT LIMITATION ANY OBLIGATIONS OF THE SELLER WITH RESPECT TO CONSEQUENTIAL DAMAGES) INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR USE AND OF ALL OTHER OBLIGATIONS OR LIABILITIES ON OUR PART, AND WE NEITHER ASSUME, NOR AUTHORIZE ANY OTHER PERSON TO ASSUME FOR US, ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OF THE PRODUCT. THIS WARRANTY SHALL NOT APPLY TO THIS PRODUCT OR ANY PART THERE OF WHICH HAS BEEN SUB-

JECT TO ACCIDENT, NEGLIGENCE, ALTERATION, ABUSE, OR MISUSE. WE MAKE NO WARRANTY WHATSOEVER IN RESPECT TO ACCESSORIES OR PARTS NOT SUPPLIED BY US. THE TERM “ORIGINAL PURCHASER,” AS USED IN THIS WARRANTY SHALL BE DEEMED TO MEAN THAT PERSON OR COMPANY THAT ORIGINALLY PURCHASED THE PRODUCT.

Symetrix product has been

This designed and manufactured for use in professional/industrial systems and is not intended for other usage. This warranty only applies to Buyers using the Product professional/industrial systems. With respect to others, including but not limited to consumers for personal, family, or household use, Symetrix expressly disclaims all warranties, including but not limited to warranties of merchantability and fitness for a particular purpose and the express warranties as otherwise provided herein.

Symetrix reserves the right to modify the design or make additions to, or improvements to, its product lines without

making similar upgrades to Product

ased by Buyer. Symetrix does not

purch authorize any third party, including any de

aler or sales representative, to assume any liability, effect any repairs or modifications to the Product, or make any additional warranties or representation regarding the Product or Product information on behalf of Symetrix.

Symetrix’s total liability on any claim, whether in contract, tort (including negligence) or otherwise arising out of, connected with, or resulting from the manufacture, sale, delivery, resale, repair, replacement or use of Product will not exceed the purchase price of the Product or any part thereof which gives rise to the claim. In no event will Symetrix be liable for any incidental or consequential damages including but not limited to damage for lost revenue, cost of capital, claims of customers for service interruptions or failure to supply, and costs and expenses incurred in connection with labor, overhead, transportation, installation or removal of products or substitute facilities or supply houses as a result of Product failure.

This limited warranty gives Buyer certain rights. Buyer may have additional rights under applicable law.

Page 34

Symetrix 460 Presentation Audio Mixer User’s Guide

Service

Where to Get Service

If outside of the USA

If you have determined that your 460

requires repair services and you

ve outside of the United States,

li please contact

or distributor for instructions

dealer on how to obtain service.

your local Symetrix

If inside the USA

Symetrix will perform in-warranty or ou

t-of-warranty service on any product it has manufactured for a period of three discontinued manufacture. If reside in theU follows:

years from date of

you

SA, then proceed as

In-Warranty Repairs

Repairs made in-warranty will cost you only one-way freight charges. We’ll prepay the return (surface) freight. Of course, if the repair is due to ope labor will be charged. If there are charges pay for the return freight. All charges will be COD unless have made other arrangements (prepaid, Visa, or Mastercard).

rator error, parts and

for the repair costs, you will

you

To Get Your 460 Unit Repaired (USA Customers Only)

1 Call our Technical Services Group for a return authorization (RA) number.

(425) 778-7728, Monday through Friday, 8:00 am to 4:30 pm Pacific Time.

Have your serial number ready to give to the service representative.

3 Pack the unit in its original packaging materials.

4 Include your name, address, daytime telephone number, and a brief

statement of the problem.

5 Write the RA number on the outside of the box.

6 Ship the unit to Symetrix, freight prepaid.

We do not accept freight collect shipments

Symetrix, Inc.

6408 216th St. SW Mountlake Terrace WA 98043

If You Don't Have Factory Packaging Materials

If you send us your product in substandard packaging, we will charge you for factory shipping materials. If als, do the following:

1 Select an oversized carton.

2 Wrap the unit in a plastic bag, and surround it with bubble-wrap.

3 Pack the box full of Styrofoam peanuts. Be sure there is enough clearance

in the carton to protect the

We will return the unit in Symetrix packaging.

you don’t have the factory packaging materi-

rack ears.

Out-of-Warranty Repairs

If the warranty period has passed, you’ll be billed for all necessary parts, labo and freight charges.

r, packaging materials,

Page 35

Symetrix 460 Presentation Audio Mixer User’s Guide

Declaration of Conformity

We, Symetrix Inc.

6408 216th St. SW, Mountlake Terrace, Washington, USA,

declare under our sole responsibility that the product:

460 Presentation Audio Mixer

to which this declaration relates, is in conformity with the following standards:

EN55103-1

Electromagnetic compatibility—Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use.

Part 1 Emission

EN 55103-2

Electromagnetic compatibility—Generic immunity standard Part 1: Residential, commercial, and light industry.

PS-3E power supply complies with this code:

EN 60950

Safety requirements for mains operated electronic and related apparatus for household and similar general use.

The technical construction file is maintained at: Symetrix, Inc.

6408 216th St. SW Mountlake Terrace, WA 98043

USA

The authorized representative located within the European Community is: World Marketing Associates P.O. Box 100 St. Austell, Cornwall, PL26 6YU, U.K. Date of issue: January 2001 Place of issue:

Authorized signature:

Mountlake Terrace, Washington USA

Dane Butcher, President