11
LPF (Low Pass Filter)
The LPF (adjustable between 50Hz and 250Hz) filters out frequencies
above the designated setting on the amplifier while attenuating
frequencies below that setting.
Bass Boost
The Bass Boost increases the decibel level of the
bass at 50Hz. The Bass Boost control adjusts between
0dB (no boost) and 12dB (maximum).
Gain
This control is used to match the input sensitivity of the amplifier to the
radio. The Gain Control is not a volume control. Use the source unit
(radio) to control system volume. Use these steps to properly set both
of the Gains:
A. Set the Gain Control to minimum by turning the
control knobs completely counter clockwise.
B. On the radio, set the bass and treble to zero, and adjust
the volume to approximately 2/3 of maximum.
C. Slowly increase the amplifier’s Gain by turning the knob
clockwise until the sound has just begun to distort. Then turn
the knob counterclockwise until the distortion goes away. This
will allow the amplifier to operate at maximum efficiency.
CONTROL PANEL LAYOUT
CH 3
MODE
2CH
3CH
HPF
40Hz 400Hz
MIN MAX
GAIN
MIN MAX
GAIN
0 12dB
BASS BOOST
CH 1/2
CH 1
CH 3
CH 2
50Hz 250Hz
LPF
