Interfire Audio A900.4 - Manual (Page 7)

6
CH3 CH4 CH2 CH1
+12V REM GND
A
U
T
O
-
A
N
T
E
N
N
A
L
E
A
D
CAR STEREO HEAD UNIT
FIG.2
LINE INPUT LINE INPUT
GAIN GAIN BASS BASS
CROSSOVER CROSSOVER
6V 0.2V 0dB 12dB 50Hz 500Hz FLAT
L.P.F H.P.F
FLAT
L.P.F H.P.F
CH1
CH2
CH3
CH4
50Hz 500Hz 0dB 12dB 6V 0.2V
CH 1/2 CH 3/4