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4 CH floating ground connections
4 CH harness wiring
for common ground connections
from speaker terminals
PLEASE NOTE! If using high level inputs,
do not use the low level RCA inputs at
the same time!
RL
ORANGE
ORANGE
ORANGE
ORANGE
BLACK
BLACK
BLACK
BLACK
FREQ.
CH 3
LOW IN
LEVEL
MIN MAX
CH 4
HPF
+18db
0
35
400
Hz
LPF
80
HPF
2.5k
2.5k
Hz
+18db
0
BASS
BOOST
MIN MAX
FREQ.
CH 1
CH 2
80
Hz
35
400
Hz
LPF
HI IN
CH4 CH3
+
-
-
+
HI IN
CH2 CH1
+
-
-
+
LOW IN
BASS
BOOST
LEVEL
FULL
HPF
LPF
FULL
HPF
LPF
POWER
PROTECT
REMOTE
BASS BOOST(CH3/4)
pb681X
pb881X
pb1881X
high level mono
input connections
4 ch amp PB681X • PB881X • PB1881X
21
from speaker terminals
CH 1/2
CH 3/4
RL
ORANGE
ORANGE
ORANGE
ORANGE
BLACK
BLACK
BLACK
BLACK