Control, Power indicator (blue), Bfc (beat frequency control) switch – Pioneer GM-D8400M User Manual
Page 5: Input switch, Bass boost control, Lpf (low-pass-filter) cut off frequency, Lpf (low-pass-filter) cut off frequency control
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Power Indicator (Blue)
The power indicator lights when the power is switched on.
BFC (Beat Frequency Control) Switch
If you hear a beat while listening to an MW/LW broadcast with your car stereo, change the
BFC switch using a small standard tip screwdriver.
LPF (Low-Pass-Filter) Cut Off Frequency Control
You can select a cut off frequency from 40 Hz to 240 Hz.
Bass Boost Control
You can adjust a bass boost level from 0 dB to 12 dB.
For instruction of connecting the bass boost remote control to the amplifier, see the
“Connection Diagram” section.
Input Switch
It is possible to input from a car stereo external output or a car stereo speaker output. Switch
the input switch before turning on the power. Since switching the input switch while the
power is on can cause a loud noise to be emitted from the speakers, the power is turned off
by a protection function. When using an external output, slide the switch to the right (RCA).
For connection instructions, see the “Connection Diagram” section. When using a speaker
output, slide the switch to the left (SP). In this case, it is necessary to use the supplied speak-
er input wire with RCA pin cord. For details, see the “Using the Speaker Input” section.