Setting bass and treble, Remote control options, Using a medialink – Extron Electronics MPA 152 User Guide User Manual
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Setting Bass and Treble
Adjust the MPA 152 bass and treble as follows:
1.
Use the Bass potentiometer to increase or decrease the bass shelving ±10 dB at 80 Hz
and below.
2.
Use the Treble potentiometer to increase or decrease the treble shelving ±10 dB at
10 kHz and above.
NOTE: Turning the Bass or Treble potentiometers counterclockwise will decrease the
output at the specified frequencies. Turning the potentiometers clockwise will increase
the output. When the potentiometer is in the center, flat response is achieved.
Remote Control Options
PO
WE
R
12V
3A MA
X
OUTPUT
S
4/8
Ohms
INPUTS
L
R
L
R
REMO
TE
10V
VO
L/MUTE
L
MP
A 122 PLUS
R
C
US
LISTED 17T
T
AU
DIO/VIDE
O
AP
PA
RA
TU
S
PC
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 152
Mini Power Amplifier
1
2
3
CONFIG
PR
OJECT
OR
VO
LUME
MLC 104 IP
1
2
3
4
ON
OF
F
MUTE
VO
LUME
VCM 100 AAP
DVD
S-video
Audio RCA
Figure 8.
Typical Application for the MPA 152, Using Remote Control
a
Using the IR remote for the projector — When using a projector with variable audio
outputs, connect the projector audio output to the MPA 152 audio input. Use the IR
remote for the projector to control the volume of the projector, which effectively controls
the volume of the MPA 152.
b
Extron volume controllers — Extron provides a range of volume and mute controllers
that offer a remote control option for use with a projector that lacks variable audio
outputs. These options control the MPA 152 volume directly. See page 7 for more
information about “
c
Using a MediaLink
®
Controller — For a projector with variable audio output, connect
the projector audio output to the MPA 152 audio input. Use a MediaLink controller to
adjust the volume of the projector via RS-232. MediaLink controllers can also use the IR
remote to adjust the volume of the projector and thus the input to the amplifier.
MPA 152 • Setup and Operation
10