Alto AMX-220-FX, AMX-220 Owners Manual
AMX-220/
User's Manual
22-CHANNEL MIXING CONSOLE/
AMX-220FX
WITH DIGITAL EFFECTS
R
LTO
www.altoproaudio.com
Version 1.3 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.
1
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 22-Channel Mixing Console possible,
AMX-220/AMX-220FX
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
2
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 ..........................................................................................................................9MONO CHANNEL INSERT
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 ............................................................................................................................10AUX SENDS CONTROL
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 ................................................................................................................................................11ALT OUTPUT
4.17 .....................................................................................................................................11MAIN MIX OUTPUT
4.18 ...................................................................................................................................................12MIC +4dB
4.19 .... .........................................................................................................................................12AUX SENDS
4.20 ..............................................................................................................................12CTRL ROOM OUTPUT
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 ( )..................................................................13FOR AMX-220FX MODEL ONLY
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
3
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,
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 presets 16 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.
and each of them is provided with warm, natural EQ (mono channels 1~8 are equipped with 3-band MID
4
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.
5
3. READY TO START?
3.1 Please check the AC voltage available in your country before connecting your AMX-220/AMX-220FX to the AC
socket.
3.2 Be 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.
3.3 Before 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.
3.4 Before disconnecting the always turn-off the power switch.AMX-220/AMX-220FX
3.5 Do not use solvents to clean your . A dry and clean cloth will be OK.AMX-220/AMX-220FX
6
4. CONTROL ELEMENTS
AMX-220
MIC 1
12
3
UNBAL
L NE IN 1
INSERT INSERT INSERT
-30dB
LINE
0dB
44dB 44dB 44dB 44dB 44dB 44dB44dB 44dB
MIC MIC M C MIC MIC M C MIC MIC
LOW CUT
75Hz
18dB Oct
0
EQ
12kHz
-15
+15
0
800
8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz
LOW
80Hz
+150-15
0
111 11
AUX
-
+15
0
2222 2
-
+15
RIGHTLEFT
MUTE /
ALT3-4
10
dB
5
0
-10
-20
-25
-30
-40
-60
12
3
LBAL OR
BAL OR
UNBAL
LINE N2 LINE IN 3
TRIMTRM
30dB
+15dB+15dB +15dB +15dB +15dB +15dB +15dB +15dB
L NE
0dB
HI
-15
M D
POST
PRE
-
POST
(PRE)
-
SOLO
PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK
5
0dB
LOW CUT
75Hz
18dB/Oct
0
EQ
HI
12kHz
15
+15
0
MID
800
LOW
80Hz
+150-15
0
AUX
POST
PRE
-
+15
0
POST
(PRE)
-
+15
RIGHTLEFT
MUTE /
ALT3 4
SOLO
10
dB
5
0
-5
-10
-20
-25
0
40
0
J
3
-30dB
0
+15
0
+15015
0
+15
0
+15
RIGHTLEFT
MIC 4MIC 2 MIC 3 MIC 5
12
BAL OR
UNBAL
LINE
LOW CUT
75Hz
18dB/Oct
EQ
12kHz
LOW
80Hz
AUX
MUTE /
ALT3-4
10
dB
5
0
-5
10
20
25
30
40
60
12
3
BAL OR
UNBAL
L NE N 4
INSERT
TR MTRIM
0dB
HI
-15
MID
POST
PRE
-
POST
(PRE)
-
SOLO
TRIM
-30dB
LINE
0dB 0dB
LOW CUT
75Hz
18dB Oct
0
EQ
HI
12kHz
-15
+15
0
M D
800800 800800 800800
LOW
80Hz
+150-15
0
AUX
POST
PRE
-
+15
0
POST
(PRE)
-
+15
RIGHTLEFT
MUTE /
ALT3-4
SOLO
10
dB
5
0
5
-10
-20
-25
-30
-40
-60
MIC 6
12
3
BAL OR
UNBAL
LINE N 5
INSERT NSERT INSERT
30dB
L NE
LOW CUT
75Hz
18dB/Oct
0
EQ
12kHz
+15
0
LOW
80Hz
+150-15
0
AUX
+15
0
+15
RIGHTLEFT
MUTE /
ALT3 4
10
dB
5
0
-5
-10
-20
-25
40
12
3
BAL OR
UNBAL
LINE N 6 L NE IN 7
TRIM
-30dB
LINE
0dB
LOW CUT
75Hz
18dB/Oct
0
EQ
HI
MID
POST
PRE
POST
(PRE)
SOLO
0
0
HI
12kHz
15
111 11
-
2222 21122
-
-15
+15
0
MID
LOW
80Hz
+15015
0
AUX
POST
PRE
-
+15
0
POST
(PRE)
-
+15
RIGHTLEFT
MUTE /
ALT3-4
SOLO
10
dB
5
0
-5
10
20
25
30
40
60
MIC 8MIC 7
2 TRACK IN/OUT
12
3
BAL OR
UNBAL
-30dB
LINE
LOW CUT
75Hz
18dB Oct
0
EQ
HI
12kHz
+15
0
M D
LOW
80Hz
+150-15
0
AUX
POST
PRE
-
+15
0
POST
(PRE)
-
+15
R GHTLEFT
MUTE /
ALT3-4
SOLO
10
dB
5
0
5
-10
-20
-25
-30
-40
-60
L
12
3
R
BAL OR
UNBAL
LINE IN 8
INSERT
TRIMTRM
LEFT(MONO)
30dB
L NE
0dB
-15
0
0
0
0
LOW CUT
18dB/Oct
+15
+150-15
+15
+15
RIGHTLEFT
75Hz
12kHz
FREQFREQFREQFREQFREQFREQFREQFREQ
80Hz
AUX
10
dB
-5
-10
-20
-25
EQ
MID
LOW
POST
(PRE)
MUTE /
ALT3 4
5
0
HI
POST
PRE
SOLO
0
0
0
RIGHT RIGHT
0
15
0
0
15
0
15
0
-
0
-
+15
+15
+15
+15
+15
RIGHTLEFT
TAPEOUTTAPEIN
LEVEL
+4dBu
10dBV
EQ
HI
12kHz
HI-M D
3kHz
MID-LOW
500Hz
LOW
80Hz
AUX
POST
PRE
POST
(PRE)
MUTE /
ALT3-4
SOLO
10
dB
5
0
-5
10
20
25
30
40
60
STEREO AUX RETURNS
1
LEFT(MONO) LEFT
RIGHT RIGHT
LINE IN 11/12LINE IN 9/10
LEFT(MONO)
0
+15
-15
0
0
+15
-15
0
+15
-15
0
-
+15
0
-
+15
R GHTLEFT
LEVEL
-10dBV
EQ
12kHz
HI-MID
3kHz
M D-LOW
500Hz
LOW
80Hz
AUX
POST
(PRE)
MUTE /
ALT3-4
10
dB
5
0
5
-10
-20
-25
-30
-40
-60
+4dBu
HI
POST
PRE
SOLO
LINE N13/14
2
LEFT(MONO)
R GHT RIGHT
0
-15
0
0
-15
0
-15
0
-
0
-
+15
+15
+15
+15
+15
RIGHTLEFT
ALT OUTPUT
LEVEL
+4dBu
10dBV
EQ
HI
12kHz
HI MID
3kHz
MID-LOW
500Hz
LOW
80Hz
AUX
POST
PRE
POST
(PRE)
MUTE /
ALT3 4
SOLO
10
dB
5
0
-5
-10
-20
-25
0
0
0
123456789/10 11/12 13/14 15/16
LEFT(3)
RIGHT(4)
LINE IN 15/16
LEFT(MONO)
15
15
15
-
-
0
+15
0
+1515+15-15+15-15+1515+15-15+15-15+1515+15-15+15-15+1515+15-15+15-15
0
+15
0
+15
0
+15
0
+15
RIGHTLEFT
MAIN MIX OUTPUT(BAL/UNBAL)
LEFT
AUX SENDS
1
RIGHT
2
LEVEL
+4dBu
10dBV
EQ
HI
12kHz
8
-+15
AUX RTN 1
HI-MID
3kHz
MID-LOW
500Hz
8
-
MAX
2TK IN
LOW
80Hz
0
AUX
1
POST
PRE
-
+15
0
2
POST
(PRE)
-
+15
AUX SENDS
BALBALBALBALPANPA NPA NPANPANPA NPA NPAN
LEVEL
SET
MUTE /
SOLO
ALT3-4
ACTIVE
PFL
SOLO MODE
LEFT
AFL
10
dB
-10
-20
-25
-30
-40
-60
MAIN MIX LEVEL
SOLO
10
dB
5
0
-5
10
20
25
30
40
60
CTRL ROOM
OUTPUT
L
R
8
-+15
AUX
RTN 2
8
+15
-
4ALT3-4
PH
CLIP
10
7
4
2
0
2
4
7
10
20
30
LR
OUTPUT LEVEL
5
0
5
RIGHT
PWR
MA N OUTPUT
LEVEL
CTR ROOML
+4dBuuMIC +4dBu
uMIC
AM
22 CHANNEL MIXING CONSOLE
PHONES
EFX TO AUX1
ALT3-4
TO MA N M X
2TK
TO MAIN M X
MAIN MIX
ALT3-4
2TK IN
TO
10
dB
-5
-10
-20
-25
-30
-40
-60
PHONES/
CONTROL ROOM
LTO
5
0
R
220
7
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