Alto AMX-220-FX, AMX-220 Owners Manual

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AMX-220/ AMX-220FX

User's Manual

22-CHANNEL MIXING CONSOLE/ WITH DIGITAL EFFECTS

LTO www.altoproaudio.com

Version 1.3 Septemper 2005

English

SAFETY RELATED SYMBOLS

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death.

This symbol, wherever used, alerts you to important operating and maintenance instructions. Please read.

Protective Ground Terminal

AC mains (Alternating Current)

Hazardous Live Terminal

ON: Denotes the product is turned on.

OFF: Denotes the product is turned off.

WARNING

Describes precautions that should be observed to prevent the possibility of death or injury to the user.

CAUTION

Describes precautions that should be observed to prevent damage to the product.

Disposing of this product should not be placed in municipal waste and should be Separate collection.

WARNING

Power Supply

Ensure that the mains source voltage (AC outlet) matches the voltage rating of the product. Failure to do so could result in damage to the product and possibly the user.

Unplug the product before electrical storms occur and when unused for long periods of time to reduce the risk of electric shock or fire.

External Connection

Always use proper ready-made insulated mains cabling (power cord). Failure to do so could result in shock/death or fire. If in doubt, seek advice from a registered electrician.

Do Not Remove Any Covers

Within the product are areas where high voltages may present. To reduce the risk of electric shock do not remove any covers unless the AC mains power cord is removed.

Covers should be removed by qualified service personnel only.

No user serviceable parts inside.

Fuse

To prevent fire and damage to the product, use only the recommended fuse type as indicated in this manual. Do not short-circuit the fuse holder. Before replacing the fuse, make sure that the product is OFF and disconnected from the AC outlet.

Protective Ground

Before turning the product ON, make sure that it is connected to Ground. This is to prevent the risk of electric shock.

Never cut internal or external Ground wires. Likewise, never remove Ground wiring from the Protective Ground Terminal.

Operating Conditions

Always install in accordance with the manufacturer's instructions.

To avoid the risk of electric shock and damage, do not subject this product to any liquid/rain or moisture. Do not use this product when in close proximity to water.

Do not install this product near any direct heat source.

Do not block areas of ventilation. Failure to do so could result in fire.

Keep product away from naked flames.

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions

Follow all instructions

Keep these instructions. Do not discard.

Heed all warnings.

Only use attachments/accessories specified by the manufacturer.

Power Cord and Plug

Do not tamper with the power cord or plug. These are designed for your safety.

Do not remove Ground connections!

If the plug does not fit your AC outlet seek advice from a qualified electrician.

Protect the power cord and plug from any physical stress to avoid risk of electric shock.

Do not place heavy objects on the power cord. This could cause electric shock or fire.

Cleaning

When required, either blow off dust from the product or use a dry cloth.

Do not use any solvents such as Benzol or Alcohol. For safety, keep product clean and free from dust.

Servicing

Refer all servicing to qualified service personnel only.

Do not perform any servicing other than those instructions contained within the User's Manual.

PREFACE

Dear Customer:

Thank you for choosing the LTO AMX-220 22-Channel Mixing Console (AMX-220FX 22-Channel Mixing Console with Digital Effects), which is the result of our LTO AUDIO TEAM's endeavours.

For the LTO AUDIO TEAM, music and audio are more than a profession, it is a passion and an obsession!

We have, in fact, been designing professional audio products for a number of years in cooperation with many of the world's major brands.

The LTO line represents unparalleled analogue and digital products made by musicians, for musicians. With our design centres in Italy, the Netherlands, and the United Kingdom we provide you with world-class designs, while our software development teams continue to develop an impressive range of audio specific algorithms.

By purchasing our LTO products you become the most important member of our LTO AUDIO TEAM. We would like to share with you our passion for what we design and invite you to make suggestions, which will aid us in developing future products for you. We guarantee you our commitment for quality, continual research and development, and of course the best prices.

The LTO AMX-220/AMX-220FX mixing console is equipped with 8 mono input channels (these are provided with ultra low noise microphone pre-amplifiers and phantom power at +48 Volt), 4 stereo input channels, 2 stereo aux returns and 2TK IN. So, in total you have 22 input channels on your AMX-220/AMX-220FX. It is specifically designed for professional application. Seeing is believing, let's meet the LTO AMX-220/AMX-220FX.

We would like to thank all the people who made the LTO AMX-220/AMX-220FX 22-Channel Mixing Console possible, especially to our designers and LTO staff. It is their passion for music and professional audio that has made it possible for us to offer you, our most important team member, our continued support.

Thank you very much

LTO AUDIO TEAM

TABLE OF CONTENTS
1.INTRODUCTION...................................................................................................................................................		4
2.FEATURES...........................................................................................................................................................		5
3.READY TO START?...............................................................................................................................................		6
4.CONTROL ELEMENTS.......................................................................................................................................		7
4.1	MONO MIC/LINE CHANNELS .....................................................................................................................	9
4.2	MONO CHANNEL INSERT ..........................................................................................................................	9
4.3	INPUT LEVEL SETTING ..............................................................................................................................	9
4.4	LOW CUT SWITCH ....................................................................................................................................	9
4.5	STEREO INPUTS .........................................................................................................................................	9
4.6	+4dBu/-10dBV................................................................................................................................................	9
4.7	EQUALIZER................................................................................................................................................	10
4.8	AUX SENDS CONTROL............................................................................................................................	10
4.9	PAN/BAL CONTROL....................................................................................................................................	10
4.10	MUTE/ALT3-4 SWITCH & LED INDICATOR...............................................................................................	10
4.11 SOLO SWITCH & LED INDICATOR...........................................................................................................		10
4.12	PEAK LED...................................................................................................................................................	11
4.13	FADER........................................................................................................................................................	11
4.14	2-TRACK IN/OUT ....................................................................................................................................	11
4.15	STEREO AUX RETURNS..........................................................................................................................	11
4.16	ALT OUTPUT................................................................................................................................................	11
4.17	MAIN MIX OUTPUT.....................................................................................................................................	11
4.18	MIC +4dB...................................................................................................................................................	12
4.19	AUX SENDS.... .........................................................................................................................................	12
4.20	CTRL ROOM OUTPUT..............................................................................................................................	12
4.21	PHONES....................................................................................................................................................	12
4.22	DSP FOOTSWITCH(FOR AMX-220FX MODEL ONLY)...........................................................................	12
4.23	AUX RETURN CONTROL..........................................................................................................................	12
4.24	EFX TO AUX1..............................................................................................................................................	12
4.25	ALT 3-4 CONTROL.....................................................................................................................................	12
4.26	2TK IN CONTROL......................................................................................................................................	12
4.27	AUX SEND CONTROL...............................................................................................................................	12
4.28	OUTPUT LEVEL LED DISPLAY................................................................................................................	13
4.29	PHANTOM LED.........................................................................................................................................	13
4.30	POWER LED..............................................................................................................................................	13
4.31	SOLO MODE SWITCH...............................................................................................................................	13
4.32	MAIN MIX LEVEL......................................................................................................................................	13
4.33	PHONES/CONTROL ROOM....................................................................................................................	13
4.34	ALT 3-4 TO MAIN MIX................................................................................................................................	13
4.35	2TK TO MAIN MIX......................................................................................................................................	13
4.36	CONTROL ROOM SOURCE.....................................................................................................................	13
4.37	24 BIT DIGITAL EFFECTS (FOR AMX-220FX MODEL ONLY)..................................................................	13
4.38	REAR PANEL DESCRIPTION....................................................................................................................	14
5.INSTALLATION AND CONNECTION.....................................................................................................................		15
6.FOR THE EXPERTS WHO WANT TO KNOW MORE..........................................................................................		18
7.PRESET LIST.........................................................................................................................................................		19
8.BLOCK DIAGRAM...............................................................................................................................................		20
9.TECHNICAL SPECIFICATION..............................................................................................................................		21
10.WARRANTY.........................................................................................................................................................		22

1. INTRODUCTION

Thank you very much for expressing your confidence in LTO products by purchasing AMX-220/AMX-220FX mixing console, The AMX-220/AMX-220FX is a professional compact mixer. You will get the smooth, accurate more natural and open sound open sound from this apparatus, and it is really ideal for gigs, recording and fixed PA installations.

The AMX-220/AMX-220FX mixing console is packed with some key features that can not be found in other consoles of its size: 8 mono (these are provided with ultra low noise microphone preamplifiers and phantom power at +48 Volt) and 4 stereo input channels, and each of them is provided with warm, natural EQ (mono channels 1~8 are equipped with 3-band MID sweep EQ, stereo channels 9~16 are equipped with 4-band fixed frequency EQ); highly accurate 12-segment bar graphic meters; 2-Track inputs assignable to Main Mix, Phones/Control Room outputs etc. Besides, the 24-bit effect processor with 256 effects (16 presets16 variations) is supplied specifically for AMX-220FX.

Your AMX-220/AMX-220FX is very easy to operate but we advise you to go through each section of this manual carefully. In this way you will get the best out of your AMX-220/AMX-220FX.

2. FEATURES

The AMX-220/AMX-220FX mixing console is designed for professional application. It will provide the following features: The common features:

8 MIC input channels with gold plated XLR and balanced LINE inputs

4 stereo input channels with balanced TRS jacks

Ultra-low noise discrete MIC pre-amps with +48V Phantom power

Extremely high headroom offering more dynamic range

Insert on each of mono input channels

Switchable Low-cut filter on each mono channel

+4dBu/-10dBV selector on each stereo channel

Warm, natural 4-band fixed frequency EQ on each stereo channel

3-band EQ with mid sweep(100Hz~8KHz) on each mono channel

Peak LED on each channel

Mute/ALT 3-4, SOLO function on each channel

2 AUX Returns for additional functionality

Control Room and Phone outputs

2-Track inputs assignable to Main Mix, Control Room / Phones outputs

Highly accurate 12-segment bar graph meters

Additionally, the AMX-220FX is also equipped with following features:

24 bit digital effect processor

256 effects (16 presets 16 variations)

Effect on/off by means of MUTE switch or a footswitch connected to the DFX FOOTSWITCH jack.

3.READY TO START?

3.1Please check the AC voltage available in your country before connecting your AMX-220/AMX-220FX to the AC socket.

3.2Be sure that the main power switch is turned off before connecting the mixer to the AC socket. Also, you should make sure that all input and output controls are turned down. This will avoid damage to your speakers and avoid excessive noise.

3.3Before turning on the AMX-220/AMX-220FX you shall connect it to a power amplifier and turn-on the mixer BEFORE the power amplifier. Once you have finished your working session you shall turn the mixer off AFTER the power amplifier.

3.4Before disconnecting the AMX-220/AMX-220FX always turn-off the power switch.

3.5Do not use solvents to clean your AMX-220/AMX-220FX. A dry and clean cloth will be OK.

4. CONTROL ELEMENTS

AMX-220

MIC 1

MIC 2

MIC 3

MIC 4

MIC 5

MIC 6

MIC 7

MIC 8

2 TRACK IN/OUT

STEREO AUX RETURNS

ALT OUTPUT

MAIN MIX OUTPUT(BAL/UNBAL)

LTO

LEFT(3)

MIC +4dBu

220

LEFT(MONO)

LEFT

RIGHT(4)

MA N OUTPUT

22 CHANNEL MIXING CONSOLE

LEVEL

LEFT

RIGHT

BAL OR

UNBAL

TAPE IN

TAPE OUT

RIGHT

L NE IN 1

LINE N 2

LINE IN 3

L NE N 4

LINE N 5

LINE N 6

L NE IN 7

LINE IN 8

LINE IN 9/10

LINE IN 11/12

LINE N 13/14

LINE IN 15/16

AUX SENDS

CTRL ROOM

OUTPUT

INSERT

NSERT

INSERT

TR M

TRIM

TR M

TRIM

TR M

TRIM

LEFT(MONO)

PHONES

+15dB

-30dB LINE

+15dB

30dB L NE

+15dB

-30dB LINE

+15dB

-30dB LINE

+15dB

30dB L NE

+15dB

-30dB LINE

+15dB

-30dB LINE

+15dB

30dB L NE

0dB

44dB MIC

0dB

44dB MIC

0dB

44dB M C

0dB

44dB MIC

0dB

44dB MIC

0dB

44dB M C

0dB

44dB MIC

0dB

44dB MIC

RIGHT

R GHT

RIGHT

LOW CUT

LEVEL

+4dBu

75Hz

10dBV

-10dBV

10dBV

18dB Oct

18dB/Oct

18dB Oct

18dB/Oct

18dB Oct

18dB/Oct

12kHz

-15

+15

-15 0

+15

-15 0

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

EFX TO AUX1

AUX RTN 1

AUX RTN 2

M D

MID

M D

MID

M D

MID

HI-M D

HI-MID

HI MID

HI-MID

3kHz

-15 800 +15

-15 800+15

15 800+15

-15 800+15

15 800+15

-15 800+15

-15 800 +15

+15

-15

+15

-15

+15

FREQ

MID-LOW

M D-LOW

MID-LOW

500Hz

100Hz

8kHz

100Hz 0

8kHz

100Hz

8kHz

100Hz 0

8kHz

100Hz

8kHz

100Hz

8kHz

100Hz

8kHz

100Hz

8kHz

+15

-15

+15

-15

+15

MAX

+15

2TK IN

ALT 3-4

LOW

80Hz

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

AUX

PWR

POST

+15

PRE

+15

PRE

+15

PRE

+15

PRE

+15

PRE

+15

PRE

+15

PRE

+15

PRE

+15

PRE

+15

PRE

+15

PRE

+15

PRE

+15

ALT 3-4

TO MA N M X

CLIP

POST

2 TK

(PRE)

TO MAIN M X

+15

PAN

BAL

AUX SENDS

LEVEL

MAIN MIX

LEFT

RIGHT

LEFT

RIGHT

LEFT

RIGHT

LEFT

RIGHT

LEFT

RIGHT

LEFT

RIGHT

LEFT

R GHT

LEFT

RIGHT

LEFT

RIGHT

LEFT

R GHT

LEFT

RIGHT

LEFT

RIGHT

SET

MUTE /

SOLO

ALT 3-4

ALT 3 4

ALT 3-4

ALT 3 4

ALT 3-4

ALT 3 4

ALT 3-4

ALT 3 4

ALT 3-4

ACTIVE

PFL

SOLO

AFL

OUTPUT LEVEL

SOLO MODE

2TK IN

CTRL ROOM

PEAK

-5

-10

-20

-25

-30

-40

-60

9/10

11/12

13/14

15/16

LEFT

RIGHT

PHONES/

MAIN MIX LEVEL

CONTROL ROOM

+ 16 hidden pages