
MPA Series User Manual v1.1
Front Panel Description
MIC LEVEL 1 to 4 - level controls for Mic Inputs 1
to 4
MUSIC SOURCE – selects active Line Input
(1 to 6)
MUSIC LEVEL – adjusts level of selected Line Input
PEAK – illuminates if Mic or Line signals level are too
high
MUSIC MUTE – illuminates when external
Emergency Mute is active
MAINS – AC power switch with LED
Ventilation slots – forced-air cooling air intake
Rear Panel Description
LINE 1 to LINE 6 – stereo line inputs for music
sources
GAIN 1 to GAIN 6 – level trims for each line input
MUSIC EQ – LF and HF EQ adjustment for music
channel
MIC 1 to MIC 4 – balanced mic inputs
GAIN 1 to GAIN 4 – level trims for each mic input
MIC EQ – LF and HF EQ adjustment for mic channel
ACCESS – external paging control input for
Mic 1
LOW IMPEDANCE OUTPUT – speaker output
for low-Z connection
LINE OUTPUT – for connection of 100 V/
70 V/25 V line distribution system
MUSIC MUTE – Emergency control input for muting
music source
REMOTE MUSIC CONTROL – for connection of
RL-1 or RSL-6 remote control panels
REMOTE/LOCAL – disables front panel controls
when remote control is in use
IEC mains input
Mains fuse
Fan – forced-air cooling air exhaust
PEAK
MUSIC
MUTE
POWER
LEVEL LEVEL LEVEL LEVEL
MAINS
11 1 1 1
55 5 5 577 7 7 7
6
6 6 6 6
OFF
OFF OFF OFF OFF
4
4 4 4 488 8 8 8
22 2 2 21010 10 10 10
33 3 3 399 9 9 9
L1
L6
L5
L4
L2
L3
O
I
g.2: MPA Front Panel
g.3: MPA Rear Panel
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