Page 1
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
Page 2
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
Page 3
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
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Page 4
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
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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
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Page 6
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.
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Page 7
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
Page 8
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
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Page 9
AMX-220FX
MIC 1
12
3
UNBAL
L NE IN 1
INSERT NSERT INSERT
-30dB
LINE
44dB 44dB 44dB 44dB 44dB 44dB44dB 44dB
0dB
MIC MIC MIC MIC MIC MIC M C MIC
LOW CUT
75Hz
18dB Oct
0
12kHz
-15
+15
0
800
8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz 8kHz100Hz
0
LOW
80Hz
+15
-15
0
111 11
AUX
-
+15
0
2
/
D
F
X
-
+15
R GHTLEFT
10
dB
-10
-20
-25
-30
-40
-60
12
3
LBAL OR
EQ
HI
MID
POST
PRE
POST
(PRE)
MUTE /
ALT3-4
SOLO
PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK PEAK
5
0
5
RBALOR
UNBAL
LINE N 2 LNE IN 3
30dB
+15dB+15dB +15dB +15dB +15dB +15dB +15dB +15dB
LINE
0dB
-15
-15
-
2
/
D
F
X
-
0dB
LOW CUT
75Hz
18dB/Oct
0
EQ
HI
12kHz
15
+15
0
MID
800
0
LOW
80Hz
15
+15
0
AUX
POST
PRE
-
+15
0
2
/
POST
D
F
(PRE)
X
-
+15
RIGHTLEFT
MUTE /
ALT3-4
SOLO
10
dB
5
0
-5
-10
-20
-25
-30
-40
-60
3
-30dB
0
+15
0
0
+15
0
+15
0
+15
R GHTLEFT
MIC 4MIC 2 MIC 3 MIC 5
12
BAL OR
LINE
LOW CUT
75Hz
18dB Oct
12kHz
80Hz
AUX
dB
-10
-20
-25
-30
-60
12
3
UNBAL
EQ
MID
LOW
POST
(PRE)
MUTE /
ALT3-4
10
5
0
5
40
BAL OR
UNBAL
LINE IN 4
INSERT
30dB
L NE
0dB
HI
-15
-15
POST
PRE
-
2
/
D
F
X
-
SOLO
0dB 0dB
LOW CUT
75Hz
18dB/Oct
0
EQ
HI
12kHz
15
+15
0
MID
800800 800800 800800
0
LOW
80Hz
15
+15
0
AUX
POST
PRE
-
+15
0
2
/
POST
D
F
(PRE)
X
-
+15
RIGHTLEFT
MUTE /
ALT3 4
SOLO
10
dB
5
0
-5
-10
-20
-25
-30
-40
-60
MIC 6
12
3
BAL OR
UNBAL
L NE IN 5
INSERT INSERT INSERT
-30dB
LINE
LOW CUT
75Hz
18dB Oct
0
EQ
12kHz
+15
0
0
LOW
80Hz
+15
0
AUX
+15
0
POST
(PRE)
+15
R GHTLEFT
MUTE /
ALT3-4
10
dB
5
0
-5
-10
20
25
30
40
60
12
3
3
BAL OR
UNBAL
LINE IN 6 LNE IN 7
TRIMTRIMTRIM TRIMTRIM TRIM TRIMTRIM
L NE
LOW CUT
75Hz
18dB/Oct
EQ
12kHz
M D
LOW
80Hz
AUX
POST
(PRE)
MUTE /
ALT3 4
10
dB
5
0
-5
-10
-20
-25
-30
-40
-60
-30dB
0dB
0
HI
-15
+15
0
0
+15
-15
0
POST
PRE
-
+15
0
2
/
D
F
X
-
+15
R GHTLEFT
SOLO
-30dB
0
HI
-15
+15
0
MID
0
+15
-15
0
111 11
POST
PRE
-
+15
0
2
/
D
F
X
-
+15
RIGHTLEFT
SOLO
12
BAL OR
UNBAL
LINE
LOW CUT
75Hz
18dB/Oct
EQ
12kHz
MID
LOW
80Hz
AUX
POST
(PRE)
MUTE /
ALT3-4
10
dB
5
0
-5
-10
20
25
30
40
60
MIC 8MIC 7
2 TRACK IN/OUT
L
12
3
R
BAL OR
UNBAL
L NE IN 8
INSERT
LEFT(MONO)
-30dB
L NE
0dB
HI
-15
-15
POST
PRE
-
2
/
D
F
X
-
SOLO
0
0
0
0
0
LOW CUT
+15
+15
+15
+15
RIGHTLEFT
75Hz
18dB/Oct
EQ
12kHz
M D
FREQFREQFREQFREQFREQFREQFREQFREQ
LOW
80Hz
AUX
POST
(PRE)
MUTE /
ALT3 4
10
dB
5
0
-5
-10
-20
-25
-30
-40
-60
HI
POST
PRE
SOLO
RIGHT RIGHT
0
-15
0
0
0
-15
0
-
0
2
/
D
F
X
-
+15
+15-15
+15
+15
+15
RIGHTLEFT
TAPEOUTTAPEIN
LEVEL
-10dBV
EQ
12kHz
HI-M D
3kHz
MID-LOW
500Hz
LOW
AUX
POST
(PRE)
MUTE /
ALT3-4
10
dB
5
0
-5
-10
20
25
30
40
60
+4dBu
HI
POST
PRE
SOLO
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
2
/
D
F
X
-
+15
RIGHTLEFT
LEVEL
12kHz
HI-MID
M D-LOW
500Hz
AUX
POST
(PRE)
MUTE /
ALT3-4
10
dB
5
0
-5
-10
-20
-25
-30
-40
-60
+4dBu
10dBV
EQ
HI
3kHz
LOW
POST
PRE
2
/
D
F
X
SOLO
ALT OUTPUT
2
LINE IN 13/14
LEFT(MONO)
RIGHT RIGHT
LEVEL
+4dBu
-10dBV
0
EQ
HI
12kHz
+15
-15
0
HI-M D
3kHz
0
MID-LOW
500Hz
+15-15
0
LOW
80Hz80Hz80Hz
+15
-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
1 2 3 4 5 6 7 8 9/10 11/12 13/14 15/16
LEFT(3)
RIGHT(4)
LINE IN 15/16
LEFT(MONO)
-15
-15
11
-
2
/
D
F
X
-
0
+15
0
+15-15+15-15+15-15+15-15+15-15+15-15+15-15+15-15+15-15+1515+15-15+1515
0
+15-15
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
M D LOW
500Hz
8
-
MAX
2TK IN
LOW
80Hz
0
AUX
1
POST
PRE
-
+15
0
2
POST
(PRE)
-
+15
AUX SENDS
BALBALBALBALPANPANPANPANPANPANPANPA N
LEVEL
SET
MUTE /
SOLO
ALT3-4
ACTIVE
PFL
SOLO MODE
LEFT
AFL
-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
AAUX
RTN 2 (DFX)
8
-
3 4ALT3 4
PH
CLIP
10
7
4
2
0
2
4
7
10
20
30
LR
OUTPUT LEVEL
10
dB
5
0
-5
R GHT
MAIN OUTPUT
+15
PWR
CTR ROOML
+4dBuMIC +4dBu
MIC
LEVEL
TO
PHONES
EFX TO AUX1
ALT3 4
TO MAIN M X
2TK
TO MAIN MIX
MAIN MIX
ALT3-4
2TK IN
PHONES/
CONTROL ROOM
LTO
FX
220
AM
22 CHANNEL MIXING CONSOLE
WITH DIGITAL EFFECTS
DSP
FOOTSWITCH
1
16
2
15
14
13
12
11
8
10
9
PRESETS
1
16
2
15
14
13
12
11
8
10
9
VARIATIONS
PEAK
DFX MUTE
1 VOCAL 1
2 VOCAL 2
3 LARGE HALL
4 SMALL HALL
5 LARGE ROOM
6 SMALL ROOM
7 PLATE
8 TAPE REVERB
9 SPRING REVERB
10 MONO DELAY
11 STEREO DELAY
12 FLANGER
13 CHORUS
14 REV +DELAY
15 FLANGERREV +
16 REV +CHORUS
10
dB
5
0
-5
-10
-20
-25
-30
-40
-60
3
4
5
6
7
3
4
5
6
7
8
Page 10
4.1 MONO MIC/LINE CHANNELS
1
These are channel 1 through channel 8. You can connect balanced,
low impedance microphones or a low level signal to the XLR socket.
On the 1/4" line jack you can connect either a microphone or a line
level instrument such as synthesizers, drum machines, effect processors or any other line level signal.
Note: You shall never connect an unbalanced microphone to the
XLR socket if you do not want to damage both the microphone and
mixer. Also, it is not possible to simultaneously use both the MIC
&LINE inputs on the same channel, use only one of them for the
appropriate source.
PHANTOM POWER +48 VOLT
It is available only to the XLR MIC sockets. Never connect a microphone when phantom power is already on.
4.2 MONO CHANNEL INSERT
2
Insert sockets are provided for all mono MIC channels. It can
allow you patch external signal processing devices into signal path
via a TRS connector, the signal will be taken out after the input
gain control (TRIM), and sent to an external processor such as a
compressor- limiter, then returned into the same channel immediately before the EQ section.
Note: Usually, insert connections require a special stereo-splitting
Y-cord to be connected, known as TRS connector (Tip Send/Ring
Return).
+15dB
0dB
MIC 1
J T
J T
3
TRIM
-30dB
44dB
12
BAL OR
UNBAL
LINE IN 1
INSERT
LINE
MIC
LOW CUT
75Hz
18dB/Oct
1
2
3
4
4.3 INPUT LEVEL SETTING
3
This control is provided with 2 different indication rings: one is for
the microphone and the other for the line level. When you use a
microphone you shall read the OUTSIDE ring (0 ~ 44dB), when
you use a line level instrument you shall read the INSIDE ring
(+15 ~ -30dB). For optimum operation you shall set this control in
a way that the peak LED will blink also occasionally in order to
avoid distortion on the input channel.
4.4 LOW CUT SWITCH
4
By pressing this button you will activate a 75Hz low frequency
filter with a slope of 18 dB per octave. You can use this facility to
reduce the hum noise caused by the mains power supply, or the
stage rumble while using a microphone.
4.5 STEREO INPUTS
5
These are channel 9 through channel 16. They are organized in
stereo pair and provided with 1/4" TRS sockets. Use the left
input if connect a mono input signal to the STEREO INPUT.
4.6 +4dBu/-10dBV
6
These switches select the input sensitivity of the line inputs on the
stereo channels CH9 ~ CH16. +4dBu is suitable for professional
audio devices, -10dBV is suitable for general HI-FI devices. If not
sure to use which setting, try +4dBu first, or change it to -10dBV
if the volume is too small to be satisfied.
LINE IN 11/12LINE IN 9/10
LEFT(MONO)
RIGHT RIGHT
LEVEL
+4dBu
10dBV
LEFT(MONO)
LEVEL
+4dBu
10dBV
5
6
9
Page 11
4.7 EQUALIZER
The mono input channels (channel 1~8) are equipped with 3-band
MID sweep EQ: HI band, MID band and LOW band. And the stereo
channels (channel 9~16) are equipped with 4-band fixed frequency
EQ: HI band, HI-MID band, MID-LOW band and LOW band. All
bands provide up to 15dB boost or cut.
-HI
7
This is the treble control. You can use it to get rid of high frequency
noises or to boost the sound of cymbals or the high harmonics
of the human voice. The gain range goes from -15dB to +15dB
with a center frequency of 12kHz.
- MID
8
This is the midrange control. It provides 15dB boost or cut, flat
at the center detent and the FREQ knob sets the center frequency, the adjustable range goes from 100Hz to 8KHz. It can
affect most fundamental frequencies of all musical instruments
and human voice.
- HI-MID
9
This control provides you up to 15dB boost or cut at 3KHz. It
is useful to control voice. It can accurately polish your performance via adjusting this knob.
- MID-LOW
10
This control provides you up to 15dB boost or cut at 500Hz.
- LOW
11
This is the bass control. It is used to boost male voice, kickdrum
or bass guitar. Your system will sound much bigger than what
it is. The gain range goes from -15dB to +15dB and the center
frequency is 80Hz.
4.8 AUX SENDS CONTROL
12
These two controls are used to adjust the level of signal sent to
AUX bus1&2, and this adjustment doesn't effect the main mix
output signal at all.
AUX1 can be configured as PRE/POST fader via the PRE/POST
switch. Up for POST fader, the signal is sent out after the channel
fader and will be affected by the channel fader. Down for PRE
fader, the signal is sent out before the channel fader and will not
be affected by the channel fader. AUX2 is configured as POST
fader, however, it can also be configured as PRE fader through
internal modification. (For more detail, please refer to chapter 6)
0
EQ
HI
12kHz
-15
+15
0
MID
8
800
FREQ
8kHz100Hz
0
LOW
80Hz
+15
-15
0
11
-
2
/
D
F
X
-
AUX
POST
PRE
+15
0
POST
(PRE)
+15
0
EQ
HI
12kHz
+15
-15
0
HI-MID
3kHz
+15-15+15-15
0
MID-LOW
500Hz
+15-15
0
LOW
80Hz
+15
-15
0
AUX
POST
-
2
/
D
F
X
-
PRE
+15
0
POST
(PRE)
+15
7
9
10
11
12
BALPAN
13
LEFT
RIGHT
8 9/10
LEFT
RIGHT
MUTE /
ALT 3-4
SOLO
PEAK PEAK
10
dB
5
0
-5
-10
-20
-25
-30
-40
-60
MUTE /
ALT 3-4
10
dB
5
-5
-10
-20
-25
-30
-40
-60
0
SOLO
14
15
16
17
4.9 PAN/BAL CONTROL
13
Abbreviation of PANORAMA control for mono channels, for the stereo channels, always says, BALANCE control.
You can adjust the stereo image of the signal via this control. Keep this control in center position and your signal
will be positioned in the middle of stage. Turn this control fully counterclockwise and the signal will be present
only on the left speaker and vice-versa.
4.10 MUTE/ALT3-4 SWITCH & LED INDICATOR
14
Each channel is equipped with the MUTE/ALT3-4 switch. This is used to route the channel signal toswitch
ALT3-4 output instead main mix and the LED beside MUTE/ALT3-4 will illuminate the switch isof the when
Depressed.
10
Page 12
4.11 SOLO SWITCH & LED INDICATOR
When pressing this button, the SOLO signal will replace other signals and reach to the
15
CONTROL
PHONES, also the LED beside it will illuminate. Usually use the SOLO function to preview each channel
signal before they are let into the mix.
It is useful to set an instrument's input level and EQ, and you can "solo" any channel that you want to.
However, The SOLO switch never affects any mix other than the PHONES/CONTROL ROOM mix.
ROOM
/
4.12 PEAK LED
16
Inside your AMX-220/AMX-220FX the audio signal is monitored in several different stages and then sent to the
PEAK LED, when this LED blinks, it warns you that you are reaching signal saturation and possible distortion.
The PEAK LED will blink with a level that is 6dB before actual clipping.
4.13 FADER
17
This control will adjust the overall level of this channel and set the amount of signal sent to the main output.
2-TRACK IN/OUT
L
R
TAPE OUTTAPE IN
18
4.14 2-TRACK IN/OUT
STEREO AUX RETURNS
1
LEFT(MONO) LEFT
RIGHT RIGHT
19 20 21
18
ALT OUTPUT
2
LEFT(3)
RIGHT(4)
MAIN MIX OUTPUT(BAL/UNBAL)
LEFT
RIGHT
MIC
+4dBuMIC +4dBu
MAIN OUTPUT
LEVEL
22
TAPE IN
Use the Tape input if you wish to listen to your mixer from a Taper Recorder or DAT. You can assign the signal
coming from the Taper Recorder either to CONTROL ROOM/PHONES output using the 2TK IN button on the
front panel or to the MAIN MIX output using the 2TK TO MAIN MIX button.
TAPE OUT
These RCA sockets will route the main mix into a tape recorder.
4.15 STEREO AUX RETURNS
19
Use these stereo 1/4" sockets to return the sound of an effect unit to the main mix. You can also use them as
the extra auxiliary inputs, but they are primarily used to connect the output of external effect processors.
Note: in AMX-220FX, the returned signal of AUX RETURN1 will also be routed to AUX RETURN if there is no
signal feeding to AUX RETURN 2 sockets. The signal is summed,on mixed in to the main L/R mix bus.
4.16 ALT OUTPUT
20
These 1/4" sockets are unbalanced outputs, the signal level to the ALT OUTPUT is adjusted by ALT 3-4
rotary on the front panel.
4.17 MAIN MIX OUTPUT
21
The stereo output is supplied both with XLR and 1/4" TRS sockets, which are used to send the audio signal to
an amplifier. Through the main mix level control, you can adjust the output level from - to +10dB.
4.18 MIC +4dB
22
When the switch is depressed, the output level from MAIN MIX OUTPUT will be reduced 30dB.
11
Page 13
4.19 AUX SENDS
23
These 1/4" sockets are used to send out the signal
from the AUX bus to external device such as effects
equipment, they also can be used as monitoring outputs
by connecting a power amplifier and monitorSpeaker.
AUX SENDS
1
2
CTRL ROOM
OUTPUT
L
R
PHONES
DSP
FOOTSWITCH
4.20 CTRL ROOM OUTPUT
24
These 1/4" sockets are used to send the control
room signal to the studio monitor speakers or a
second set of PA.
4.21 PHONES
25
This socket will send out the mix signal to a pair
of headphones.
4.22 DSP FOOTSWITCH (for AMX-220FX model only)
This socket is used to connect external footswitch
for your convenient operation, it will activate/
deactivate the DSP module in this unit and function
same as DFX MUTE switch .
4.23 AUX RETURN CONTROL
43
27
These two controls adjust the level of the signal
present at the AUX RETURNS 1&2 jacks.
The signal is summed, or mixed in to the main
L/R mix bus.
4.24 EFX TO AUX1
28
This switch will routes the signal that is present at
the AUX RETURN 2 jacks to AUX 1 output so that
the effects can be heard in the monitor mix.
4.25 ALT 3-4 CONTROL
29
This control is used to adjust the level of the ALT
output, and the adjustable range is from - to +15dB,
this is another way to offer you extra independent
stereo submix with its own level adjustment knob.
4.26 2TK IN CONTROL
30
This control is used to adjust the level of 2TK IN
signal, which can be varied from - to MAX.
4.27 AUX SENDS CONTROL
31
These controls are used to determine the master
AUX SENDS levels. The adjustable range is from
- to +15dB. When the effect unit connected to mixer
has no input gain control, you can get a further +15dB
gain available from these AUX SENDS outputs.
4.28 OUTPUT LEVEL LED DISPLAY
32
This stereo 12 segments LED meter will indicate
the level of the overall output signal.
26
29
30
34
33
31
32
35
36
23
8
+15
1AUX RTN 1
8
MAX
2TK IN
0
1
+15
0
2
+15
AUX SENDS
SOLO
ACTIVE
SOLO MODE
LEFT
MAIN MIX LEVEL
24
27
-
LEVEL
SET
PFL
AFL
OUTPUT LEVEL
10
dB
5
0
-5
-10
-20
-25
-30
-40
-60
8
+15
2AUX
RTN 2 (DFX)
8
+15
TALT 3-4
PWR
PH
CLIP
10
7
4
2
0
2
4
7
10
20
30
LR
CTR ROOML
RIGHT
25 26
28
EFX TO AUX1
ALT 3 4
TO MAIN MIX
2TK
TO MAIN MIX
MAIN MIX
ALT 3 4
2TK IN
TO
10
dB
5
0
-5
-10
-20
-25
-30
-40
-60
PHONES/
CONTROL ROOM
38
39
40
37
4.29 PHANTOM LED
33
This LED indicates when the phantom power is switched on.
12
Page 14
4.30 POWER LED
34
This LED indicates when the power is on in your AMX-220/AMX-220FX.
4.31 SOLO MODE SWITCH
35
This button provides two modes: up for PFL (Pre-Fader-Listen) mode,down for AFL(After-Fader-Listen)
mode. Engage the button, the output signal of soloed channel will be sent out after its channel fader.
Release the button to enter into PFL mode, the signal of soloed channel will be sent out before its channel
Fader and not affected by the PAN/BAL and fader control.
Note: The SOLO MODE switch is usable only when one or more channel SOLO switches have been
pressed down.
4.32 MAIN MIX LEVEL
36
These two faders set the amount of signal sent both to the Main Output and the Tape Output.
4.33 PHONES/CONTROL ROOM
37
This fader sets the amount of signal sent to Control Room and Headphone.
4.34 ALT 3-4 TO MAIN MIX
38
Engaging this switch allows you to combine the ALT 3-4 output with the MAIN MIX, and feeds ALT 3-4
signal into Main output.
4.35 2TK TO MAIN MIX
Engaging this button to route the 2TK IN signal into the Main Mix output.
4.36 CONTROL ROOM SOURCE
You can choose to monitor any combination of MAIN MIX, ALT 3-4 and 2TK
IN via these matrix switches.The ALT 3-4 is additional stereo mix bus, 2TK
IN is the stereo signal coming from the TAPE IN jacks.These stereo signals
will be delivered to the PHONES/CONTROL ROOM by engaging these switches.
Note: when the channel's SOLO switch was engaged, then the SOLO signal
will replace other signals, and also be sent to the CONTROL ROOM/PHONES.
39
40
15
14
13
12
11
15
14
13
12
11
VARIATIONS
1
16
10
9
PRESETS
1
16
10
9
PEAK
DFX MUTE
2
3
4
5
6
7
8
2
3
4
5
6
7
8
41
42
44
43
4.37 24 BIT DIGITAL EFFECTS (For AMX-220FX Model)
- PRESETS CONTROL
41
Adjust this knob to select the right effect you wish to perform. There
are total 16 options for you: several kinds of reverb, mono and stereo
delay, modulation effects, and versatile two-effect combination.
- VARIATIONS CONTROL
42
Since you have selected the preferable effect, the next step, please go
with the fine consideration, there are also total 16 variations for each
preset. Each variation has been designed modifying several parameter.
- DFX MUTE SWITCH
43
This switch is used to activate/deactivate the effect facility. Sometimes, you can
also use the DFX FOOTSWITCH for convenient operation.
- PEAK LED
44
This LED lights up when the input signal is too strong. In case of the digital
effect module being muted, this LED also lights up.
1 VOCAL 1
2 VOCAL 2
3 LARGE HALL
4 SMALL HALL
5 LARGE ROOM
6 SMALL ROOM
7 PLATE
8 TAPE REVERB
9 SPRING REVERB
10 MONO DELAY
11 STEREO DELAY
12 FLANGER
13 CHORUS
14 REV + DELAY
15 FLANGERREV +
16 REV + CHORUS
13
Page 15
4.38 REAR PANEL DESCRIPTION
ON
46
18VAC~
47
OFF
PHANTOM
POWER
RATED POWER CONSUMPTION: 25W
45
- POWER ON/OFF SWITCH
CAUTION
RISK OF ELECTRIC SHOCK
WARNING: SHOCK HAZARD
AVIS: RISQUE DE CHOC ELECTRIQUE
DO NOT OPEN
DO NOT OPEN
45
MODEL
NE PASOUVRIR
SERIAL
This switch is used to turn the main power ON and OFF.
- PHANTOM ON/OFF SWITCH
46
This switch will apply +48 Volt Phantom Power only to the 8 XLR microphone inputs. Never connect microphones
When the phantom power is on already.
- AC INPUT CONNECTOR
47
This connector is used to connect the 18VAC adapter supplied by LTO company only.
14
Page 16
5. INSTALLATION AND CONNECTION
Ok, you have got to this point and you are now in the position to successfully operate your AMX-220/AMX-220FX.
However, we advise you to read carefully the following section to be the real master of your own mixer. Not paying
enough of the signal will result inattention to the input signal level, to the routing of the signal and the assignment
unwanted distortion, a corrupted signal or no sound at all. So you should follow these procedures for every single channel:
Before connecting mics or instruments, make sure that the power of all your systems components including the
mixer is turned off. Also, make sure that all input and output controls of your mixer are turned down. This will avoid
damage to your speakers and avoid excessive noise.
Properly connect all external devices such as mics, power amplifiers, speakers, effects processor etc.
Now, turn on the power of any peripheral devices, then power up the mixer.
Note: the power amplifier or powered monitors shall be turned on after the mixer and turned off before the mixer.
75%.Set the output level of your mixer or the connected power amplifier at no more than
Set the CONTROL ROOM/PHONE level at no more than 50%.
Position HI, MID and LOW EQ controls on middle position.
Position panoramic (PAN/BAL) control on center position.
While speaking into the mic (or playing the instrument), adjust the channel Level control so that the channel PEAK
blink occasionally, in this way you will maintain good headroom and idea dynamic range.LED will
You can shape the tone of each channel by adjusting the equalizer controls as desired.
Now repeat the same sequence for all other input channels. The main LED could move up into the red section,
in this case yo can adjust the overall output level through the MAIN MIX control.
For AMX-220FX, you can select desired DSP sound effects via PRESET and VARIATION controls.
15
Page 17
Audio Connection
5.1
Both XLR and 1/4 " TRS connectors are available on the unit. In this way you can interface the unit in several
different ways without experiencing any noise or signal loss. You can use the unit with single instruments using
The mixer's main insert or on "in-line" between a mixing console's output and a power amplifier.
- Wiring Configuration
Either the 1/4" TRS phone jack or XLR connector can be wired in balanced and unbalanced modes, which will
be determined by the actual application status, please wire your system as the following wiring examples:
For 1/4" Phone jack
+
+
+
-
Tip
Sleeve
TS Type Unbalanced
Ring
Tip
Sleeve
TRS Type Balanced
Ring
TRS Type Unbalanced
Tip
Sleeve
For XLR connector
Pin2 (+)
Pin3 ( )
Pin3 ( )
(Linked to Pin1 manually, )
Pin1 ( )
Pin1 ( )
XLR Type Unbalanced XLR Type alancedB
Pin2 (+)
- In-line Connection
For these applications the unit provides 1/4" TRS and XLR connectors to easily interface with most
professional for your particular connection.audio devices. Follow the configuration examples below
Balanced
TIPRING SLEEVE
3
2 1
TIPRING SLEEVE
Unbalanced
TIPRING SLEEVE
TIPSLEEVE
3
2 1
TIPSLEEVE
TIPRING SLEEVE
TIPSLEEVE
TIPRING SLEEVE
3
2 1
SLEEVE RINGTIP
3
3
3
3
SLEEVETIP
SLEEVE RINGTIP
3
Tip
Ring
1 2
1 2
1 2
1 2
1 2
Sleeve
Ring
Sleeve
Ring
Sleeve
Sleeve
Sleeve
Ring
Sleeve
Sleeve
Ring
Sleeve
1
2
3
Tip
Tip
Tip
1
2
3
Tip
Tip
Tip
Tip
1
2
3
Tip
Ring
Sleeve
1
2
3
1
2
3
1
2
3
1
2
3
Cent er
Screen
Tip
Sleeve
Tip
Ring
Sleeve
Cent er
Screen
Centre
Screen
1
2
3
16
Page 18
- Insert Points Connection
If you are connecting to a mixing console's main inserts, you may have a single TRS jack for Send and
Return, in this case, use an insert "Y" cable that configured like the examples below.
1/4" TRS insert
Ring
Send
Return
Tip
Sleeve
Insert Leads
TIPRING SLEEVE
TIPRING SLEEVE
TIPR NG SLEEVE
SLEEVETIP
SLEEVE RINGT P
3
3
Tip
Ring
Sleeve
1
2
21
Sleeve
Sleeve
Ring
Ring
Tip
Tip
Tip (Send)
Sleeve
Tip (Return)
Sleeve
1
2 (Send)
3
1
2 (Return)
3
Centre (Send)
Screen
Centre (Return)
Screen
17
Page 19
6. FOR THE EXPERTS WHO WANT TO KNOW MORE
As we have told you previously in this manual, the AUX SEND2 control both on mono and on stereo channels is factory
wired as POST-FADER. If you have some skill in electronic components soldering you can modify this setting and have
all your AUX SENDS configured as PRE-FADER.
(PRE)
POST
AUX
Before
(PRE)
Disconnect
the POST route
POST
Modification on mono and stereo channels
AUX
Solder the PRE route
After
18
Page 20
7. PRESET LIST (For AMX-220FX Model)
No.
1
VOCAL 1
2
VOCAL 2
3
4
5
6
7
PLATE
TAPE REVERB
8
Preset
Description
Simulate a room with small delay time.
Simulate a small space with slight decay time.
Simulate a large acoustic space of the sound.LARGE HALL
Simulate a small acoustic space of the sound.SMALL HALL
Simulate a studio room with many early reflections.LARGE ROOM
Simulate a bright studio room.SMALL ROOM
Simulate the transducers sound like classic bright
vocal plate.
Simulate a record head and multiple playback heads
at intervals along the tape.
Controllable parameter
Parameter Variable range
Decay time
Pre-delay
Decay time
Pre-delay
Decay time
Pre-delay
Decay time
Pre-delay
Decay time
Pre-delay
Decay time
Pre-delay
Decay time
Pre-delay
Decay time
Pre-delay
0.8~1.1s
0~79ms
0.8~2.5s
0~79ms
3.6~5.4s
23~55ms
1.0~2.9s
20~45ms
2.9~4.5s
23~55ms
0.7~2.1s
20~45ms
0.6~6.1s
10ms
1.3~5.4s
0~84ms
9
SPRING REVERB Simulate the analog transducers' springs lightly
stretched sound.
10
MONO DELAY
11
STEREO DELAY
12
FLANGER
13
CHORUS
REV.+DELAY
14
15
REV.+FLANGER
16
REV.+CHORUS
Reproduce the sound input on the outputafter a
lapse of time.
Recreate the input sound on the stereo output with
different time.
Simulate to play with another person carryingout
sam e the notes on the same instrument
Recreate the illusion of more than one instrument
from a single instrument sound
Delay with room effect
Stereo chorus and large room reverb
Simulate the sound effect achieved by rotating horn
speakers and a bass cylinder
Decay time
Pre-delay
Period
Period
Feedback
Rate
Rate
Delay period
Rev. decay time
Flanger Rate
Rev. decay time
Chorus rate
Rev. decay time
1.3~5.4s
0~35ms
60~650ms
210~400ms
37~73%
0.16~2.79Hz
0.5~5Hz
211~375ms
1.0~2.9s
0.16~2.52Hz
1.5~2.9s
0.5~4.74Hz
1.5~2.9s
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Page 21
8. BLOCK DIAGRAM
D
8
LEFT
RIGHT
TAPE OUT
2TK
7
R
AUXSEND
6
5
MAIN OUT
R
AUX SEND2
AUX SEND1
R
T
T
S
S
AUX1
AUX2
LEVEL
MAINMIX LEFT
2
3
1
T
S
LEVEL
R
+4dB/MIC
LEVEL
MAIN MI X
MAINMIX RIGHT
2
3
1
T
S
+4dB/MIC
LEVEL
ALT3-4
C
LEFT
RIGHT
ALT-3(L)
R
T
S
ALT3- 4OUT
TAPE IN
ALT-4(R )
2TK
R
T
S
2TK
ALT3-4
2TKTO MIX
MAI N M X
ALT3-4 TOMIX
B
SOLOACT IVE
LEFTMETER
RIHT METER
AFL
( )
SOLOM ODE
SOLOC TRL
CONTROLRO OM SOURCE
AFL L
PFL LED
AFL R
PHONES
R
T
S
PHONES OUTPUT
PFL
( )
(LEVEL SET)
SOLO(PFL)
A
LEFT
RIGHT
R
R
T
T
S
S
CONTROL ROOMOUTPUT
78
OM
&PHONES
CONTROLRO
6
5
LEFT-BUS
AUX-1
DEF SENDDEF SEND
LOGIC
EFXSEND
SOLO(PFL)
AFL R
AFL L
AUX 2
AUX 1
ALT4(R)
ALT3(L)
RIGHT BUS
LEFTBUS
RIGHT-BUS
ALT-4
LEFT-BUS
4
3
2
1
ALT-3
MAIN/ALT
PAN
FADER
2
LOCUT
3
1
12K100Hz-8kHz80
+/-15db
3-BANDEQ
MID
LO (FREQ) HI
GAIN
+
-
2
3
1
+48V
POWER
PHANTOM
MONO INPUTCHANNELS ( 1-8)
MIC IN
LEFT-BUS
AUX-2
AFL-L
AFL-R
SOLO(PFL)
75Hz
HI PASS
LINEI N
RIGHT-BUS
AUX-2
ON
SOLO
()
AUX2
POST
1 2
T
S
R
RN
TN
3c
4d
2b
1a
5e
INSERT
MICGAIN:0~60dB
LINEINTRIM:+15dB~-45dB
ALT-3(L)
AUX-1
AUX1
PRE
1 2
PRE
POST
FADER
PEAK
LO M-H HIL- M
STEREO INPUT CHANNELS (9-16)
LEFT-BUS
ALT-4(R )
LEFT-BUS
ALT-4
ALT-3
RIGHT-BUS
MAIN/ALT
BALANCE
12K50080
12K50080
3K
3K
+/-15db
+/-15db
4-BANDEQ
4-BANDEQ
-
-
+
+
T
S
R
RN
3c
4d
T
TN
R
RN
TN
3c
4d
2b
2b
1a
1a
5e
LEF T( MONO)
RIGHT-BUS
RIGHT-BUS
AUX-2
AFL-L
AFL-R
SOLO(PFL)
ON
SOLO
()
POST
S
5e
RIGHT
AUX-1
AUX2
AUX1
PRE
1 2
1 2
PRE
POST
AUX1R ETURN
PEAK
R
3c
4d
2b
1a
STEREOA UXRETURN 1
RIGHT-BUS
LEFT-BUS
-
-
+
+
5e
3c
4d
2b
1a
X8
JY-6351G-02-250
AUX-1
LEFT-BUS
1
3
EFXTOAU X-1
2
RETURN
AUX2/ D SP
-
+
R93 R94
5e
3c
4d
2b
X9
JY-6351G-02-250
LOGIC
EFXSEND
SOLO(PFL)
AFL R
AFL L
AUX 2
AUX 1
ALT4(R)
ALT3(L)
RIGHT BUS
LEFTBUS
AUX-1
RIGHT-BUS
1
3
2
AUX2/ D SP
DSPBOARD
-
+
FX OUT R
FX OUT L
1a
5e
3c
4d
2b
1a
5e
X10
JY-6351G-02-250
4
3
(For AMX-220FX only)
2
MUTE
PRESETS
VARIAT ION S
DSPFOOTSWITCH
X11
JY-6351G-02-250
1
D
C
B
A
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Page 22
9. TECHNICAL SPECIFICATION
Mono input channels
Stereo input channels
Impedance Microphone input
Equalization Hi shelving
DSP SECTION A/D and D/A converters
Main Mix Section Noise (Bus noise )
Power supply
(AC/AC Adaptor)
Physical
Microphone input
Frequency response
Distortion (THD&N)
Gain range
SNR (Signal Noise Rated)
Line input
Frequency response
Distortion (THD&N)
Sensitivity range
Line input
Frequency response
Distortion (THD&N) 0.005% at +4dBu, 1KHz
Channel insert return
All other inputs
Tape out
All other output
Mid sweep
HI-MID
MID-Low
Low shelving
DSP resolution
Type of effects
Presets
Controls
Max output
AUX Return gain range
AUX Sends max out
Main voltage
Power Consumption
Dimension (W D H)
Net weight
Electronically balanced ,discrete input configuration
10Hz to 55KHz, 3dB
0.005% at +4dBu, 1KHz
0dB to 44dB(MIC)
115dB
Electronically balanced
10Hz to 55KHz, 3dB
0.005% at +4dBu, 1KHz
+15dBu to -45dBu
Balanced
10Hz to 55KHz, 3dB
1.4K ohm
2.5K ohm
10Kohm or greater
1K Ohm
120 ohm
15dB @ 12KHz
15dB @ 100Hz~8KHz
15dB @ 3KHz
15dB @ 500Hz
15dB @ 80Hz
24 bit
24 bit
Hall, Room, Vocal & Plate REVERBS
Mono & Stereo DELAY (max DELAY TIME 650ms)
Chorus, Flanger & Reverb MODULATIONS
REVERB+DELAY, REVERB+CHORUS
REVERB+FLANGER combinations
256
16-position PRESET Selector
16-position VARIATION selector
PEAK LED
MUTE SWITCH with LED indicator
Fader 0 dB, channels muted:-100.0dBr (ref.:+4dBu)
Fader 0 dB,all input channels assigned and set to
UNITY gain:-90dBr(ref.:+4dBu)
+22dBu balanced XLR,
+22dBu unbalanced,1/4" jacks
OFF to +15dB
+22dBu
USA/ Canada 100-120V~,60Hz
Europe 210-230V~,50Hz
U.K/Australia 240V~,50Hz
22watts
427mm 412mm 43mm
5.90kg for AMX-220
5.98kg for AMX-220FX
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Page 23
10. WARRANTY
10.1 WARRANTY REGISTRATION CARD
To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card
within10 days of the Purchase Date.
All the information presented in this Warranty Registration Card gives the manufacturer a better understanding
of the sales status, so as to purport a more effective and efficient after-sales warranty service.
Please fill out all the information carefully and genuinely, miswriting or absence of this card will void your warranty
service.
10.2 RETURN NOTICE
a. In case of return for any warranty service, please make sure that the product is well packed in its original shipping
carton, and it can protect your unit from any other extra damage.
b. Please provide a copy of your sales receipt or other proof of purchase with the returned machine, and give detail
information about your return address and contact telephone number.
c. A brief description of the defect will be appreciated.
d. Please prepay all the costs involved in the return shipping, handling and insurance.
10.3 TERMS AND CONDITIONS
a. warrants that this product will be free from any defects in materials and/or workmanship for a period
LTO
of 1 year from the purchase date if you have completed the Warranty Registration Card in time.
b. The warranty service is only available to the original consumer, who purchased this product directly from the
retail dealer, and it can not be transferred.
c. During the warranty service, may repair or replace this product at its own option at no charge to you for
LTO
parts or for labor in accordance with the right side of this limited warranty.
d. This warranty does not apply to the damages to this product that occurred as the following conditions:
Instead of operating in accordance with the user's manual thoroughly, any abuse or misuse of this product.
Normal tear and wear.
The product has been altered or modified in any way.
Damage which may have been caused either directly or indirectly by another product / force / etc.
Abnormal service or repairing by anyone other than the qualified personnel or technician.
And in such cases, all the expenses will be charged to the buyer.
e. In no event shall be liable for any incidental or consequential damages. Some states do not allow the exclu-LTO
sion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you.
f. This warranty gives you the specific rights, and these rights are compatible with the state laws, you may also
have other statutory rights that may vary from state to state.
22
Page 24
SEIKAKU TECHNICAL GROUP LIMITED
No. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwan
http://www.altoproaudio.com Tel: 886-4-22313737
email: alto@altoproaudio.com Fax: 886-4-22346757
All rights reserved to ALTO. All features and content might be changed
without prior notice. Any photocopy, translation, or reproduction of part of this
manual without written permission is forbidden. Copyright 2005 SEIKAKU GROUP
c
NF01910 1.3
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