Quick Start Guide — MPA 122, cont’d
MPA 122 • Quick Start Guide
QS-2 iiiMPA 122 • Table of Contents
Chapter 1 • Introduction .......................................................... 1-1
About this Manual ................................................................ 1-2
About the MPA 122............................................................... 1-2
Features ......................................................................................1-2
Chapter 2 • Installation and Operation ......................... 2-1
Installation Overview.......................................................... 2-2
Mounting the MPA 122....................................................... 2-2
Rack mounting....................................................................... 2-3
Under-desk mounting ........................................................... 2-4
Projector mounting ............................................................... 2-5
Rear Panel Features .............................................................. 2-6
Power input ........................................................................... 2-7
Audio inputs .......................................................................... 2-7
Remote control ...................................................................... 2-8
Audio output ......................................................................... 2-8
Front Panel Features ............................................................ 2-8
Setting Up the MPA 122 Amplifier ...............................2-9
Remote connector wiring ................................................... 2-10
Chapter 3 • Remote Operation ............................................ 3-1
Remote Control Options .................................................... 3-2
Appendix A • Specifications, Part Numbers,
and Accessories.............................................................................. A-1
Specifications ......................................................................... A-2
Included Parts ......................................................................... A-5
Optional Accessories........................................................... A-5
Table of Contents
68-943-01 Rev. A
11 04
All trademarks mentioned in this manual are the properties of their respective owners.
BASSLEVEL TREBLE
MINI POWER AMPLIFIER
MPA 122
Step 6
Adjust the MPA 122 input level, bass and treble.
a. If connecting to a projector, ensure that the volume on the device
is at its lowest point, then adjust the level of the MPA 122 fully
counterclockwise.
b. Set the projector volume to its maximum
volume level (no sound should come
out).
c. Return to the MPA 122 and raise the level until sound distortion
occurs, then lower slightly until distortion disappears. This
setting ensures that, whatever the projector volume setting may
be, no clipping occurs.
d. Adjust bass and treble to preference.
P
O
W
E
R
O
U
T
P
U
T
S
4/8 Ohms
IN
P
U
T
S
L
R
L
R
R
EM
O
TE
10
V
V
O
L
/MUTE
L
M
P
A
1
2
2
R
C
U
S
PC
Projector
Remote Control Options
IR Remote - (input selection and volume control through projector)
8 ohm Ceiling
Speakers
in Parallel
VGA w/
Audio Cable
VCR
Composite
Audio RCA
Variable
Audio
Output
ComLink
IR Remote
Extron
MLC 104 IP
Controller
Extron
VCM 100 AAP
Volume/Mute Controller
Extron
MPA 122
Mini Power Amplifier
1
1
VCM 100 Volume/Mute Controller - (direct MPA 122 control)
2
MLC 104 IP Controller - (input selection and volume control through projector)
3
2
3
C
O
N
F
I
G
PR
OJ
ECT
O
R
V
O
L
UM
E
M
LC 10
4 IP
1
2
3
4
ON
O
FF
M
UT
E
VO
L
U
M
E
VCM 100 AA
P
DVD
S-video
Audio RCA
Typical connection setup
POWER
12V
3A MAX
OUTPUTS
4/8 Ohms
INPUTS
L
R
L
R
REMOTE
10V
VOL/MUTE
L
MPA 122
R
C US
The Extron MPA 122 mini power amplifier
