Alto AMX-120 Users Manual
User's Manual
AMX-120
12-CHANNEL MIXING CONSOLE
R
LTO
www.altoproaudio.com
Version 1.4 Septemper 2005
English
SAFETY RELATED SYMBOLS
CAUTION
RISK OFELECTRIC SHOCK
DO NOTOPEN
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.
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.
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.
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.
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PREFACE
Dear Customer:
Thank you for choosing the LTO AMX-120 12-Channel Mixing Console, 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-120 mixing console is equipped with 2 mono input channels (these are provided with ultra low noise
microphone pre-amplifiers and phantom power at +48 Volt), 8 stereo input channels and 2 TK IN. So, in total you have
12 input channels on your AMX-120. It is specifically designed for professional application.
Seeing is believing, let's meet the LTO AMX-120.
We would like to thank all the people who made the LTO AMX-120 12-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
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TABLE OF CONTENTS
1.INTRODUCTION...................................................................................................................................................4
2.FEATURES...........................................................................................................................................................5
3.READY TO START?...............................................................................................................................................6
4.CONTROL ELEMENTS.......................................................................................................................................7
4.1 MONO MIC/LINE Channels..........................................................................................................................8
4.2 STEREO Inputs ...........................................................................................................................................9
4.3 MASTER Section ........................................................................................................................................10
4.4 CTRL ROOM OUTPUT Connectors .........................................................................................................11
4.5 2TK IN/OUT Connectors ............................................................................................................................11
4.6 AUX SENDS Connectors ...........................................................................................................................11
4.7 PHONES ....................................................................................................................................................11
4.8 MAIN MIX OUTPUT Connectors ..............................................................................................................11
4.9 REAR PANEL Description .........................................................................................................................12
5.INSTALLATION AND CONNECTION.....................................................................................................................13
6.FOR THE EXPERTS WHO WANT TO KNOW MORE..........................................................................................15
7.BLOCK DIAGRAMS.............................................................................................................................................16
8.TECHNICAL SPECIFICATION..............................................................................................................................17
9.WARRANTY...........................................................................................................................................................18
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1. INTRODUCTION
Thank you very much for expressing your confidence in LTO products by purchasing LTO AMX-120 mixing console.
The AMX-120 is a professional compact mixer. You will get the smooth, accurate more natural and open sound from
this apparatus, and it is really ideal for small gigs, recording and fixed PA installations.
The AMX-120 mixing console is packed with some key features that can not be found in other consoles of its size:
2 mono input channels (these are provided with ultra low noise microphone pre-amplifiers and phantom power at
+48 Volt), each of which is provided with a 3 bands graphic equalizer for HI, MID and LOW controls; 8 stereo input
channels; highly accurate 4-segment bar graph meters and 2-Track inputs assign-able to main mix, control room /
headphone outputs etc..
Your AMX-120 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-120.
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2. FEATURES
The AMX-120 12-Channel Mixing Console is designed for professional application. It will provide the following features:
2 MIC input channels with gold plated XLRs and balanced LINE input
8 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
Switch-able low cut filter on each mono channel
Warm, natural 3-band EQ on each mono channel
Peak LED on each mono channel
+4dB / -10dB gain select switch on stereo channels
AUX send switch-able to PRE/POST fader
Control room and headphone outputs
2-Track inputs assignable to main mix, control room / headphone outputs
Highly accurate 4-segment bar graph meters
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