Control Functions - B52 marine BMP 4004 Instruction Manual

CONTROL FUNCTIONS

1. RCA inputs
RCA cables marked FRONT or REAR from head unit or other line level device should be
connected here. Use both inputs ( L& R) for front and rear stereo.
2. Input Level Controls
This is for adjusting input sensitivities. To adjust the sensitivity, turn the controls fully
counterclockwise to minimum. Adjust the radio/head unit volume knob to maximum volume,
and then turn the level controls on the amplifier clockwise until audible distortion occurs.
3. Crossover Selector (HPF/FLAT/LPF)
This switch allows these two amplifier channels to play full range, low pass, or high pass. In
the LPF (Low Pass Filter) position, all the high frequencies are filtered out and the amplifier
produces only low bass frequencies.
On the contrary, in the HPF position, the low frequencies are filtered out and allowing the
amplifier to play mid and high frequency. If the amplifier is used to power subwoofers, set the
crossover switch to LPF. If the amplifier is used to power midrange and tweeters or coaxial type
speakers, set the crossover to HPF.
Switch the crossover to FLAT when amplifier is used in Tri mode configuration or when full
range speaker are used.
4. Status LED indicators
BLUE indicates the normal operating condition: the amplifier is ON.
RED indicates the Amplifier is protection
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