Bfc (Beat Frequency Control) Switch; Lpf (Low-Pass Filter) Select Switch - Pioneer GM-3300T Owner's Manual

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) Select Switch

Set the LPF select switch as follows according to the type of speaker that is connected to the
speaker output connector and the car stereo system:
LPF Select
Switch
LPF (right)
OFF (left)
Audio frequency range
to be output
80 Hz and below with
–12 dB/oct. cut off slope
Full range
Speaker Remarks
Type
Subwoofer Connect a subwoofer.
Full range
4