features and controls
4 ch amp PB-638GX • PB-1038GX
ch 3/4 input level control
ch 3/4 high level inputs
+ - - +
CH4 CH3
HI IN
| LEVEL |
| BASS |
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| BASS |
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CH 4 | FREQ. | BOOST LPF | HPF | HPF | LPF | BOOST | FREQ. | LEVEL | CH 2 | |
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| HPF |
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| HPF |
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| MIN MAX | LPF | 0 +18db 35 400 | 80 2.5k | 80 2.5k | 35 400 | 0 +18db | LPF | MIN MAX |
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CH 3 |
| FULL | Hz | Hz | Hz | Hz |
| FULL |
| CH 1 |
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| CHANNEL 3/4 |
| REMOTE | CHANNEL 1/2 |
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| BASS BOOST(CH3/4) |
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| PROTECT | POWER |
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+ - - +
CH2 CH1
HI IN
ch 1/2 input level control
ch 1/2 high level inputs
LOW IN | 4 CHANNEL MOSFET AMPLIFIER | LOW IN |
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ch 3/4 low level inputs
ch 3/4 crossover mode selector switch ch 3/4 bass boost level control
ch 3/4 low pass frequency control ch 3/4 high pass frequency control
ch 1/2 low level inputs |
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ch 1/2 crossover mode selector switch | 8 |
ch 1/2 bass boost level control | |
ch 1/2 low pass frequency control |
ch 1/2 high pass frequency control
protection LED power LED
speaker connections
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| FUSE | REM |
| CH1 |
| CH2 |
| CH3 |
| CH4 |
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+ | - | + | - | + | - | + |
| - | GROUND | +12V BATT |
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power terminals
+ BRIDGED - | + BRIDGED - |
power fuse
