B52 marine BMP 4004 Instruction Manual page 8

CONTROL FUNCTIONS
5. CORSSOVER
This is for adjusting LPF & HPF frequencies; In the LPF position, to adjust the frequencies from
32Hz-320Hz, all the high frequencies are filtered out and the amplifier produces only low bass
frequencies. In the HPF position to adjust the frequencies from 32Hz-320Hz, the low frequencies
are filtered out and allowing the amplifier to play mid and high frequency.
6. Bass Boost
This is for adjusting input signal bass boost level al 50Hz ,turn the controls bass boost level, at
0dB to +6dB.
7. Speaker Terminals
It allows the connection of speakers to the amplifier. Note the polar of the speakers.
8. Ground Connector
It connects GND wire from a connection point on the vehicle chassis.
9. REMOTE control
This connects the control wire switch allows the amplifier to be turned on and off by the head unit.
10. Power Connection
It connects +12V DC power wire from the battery.
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