sound level too low, even If LPF (LPF/HPF) select switch is The power indicator lights when the volume of the car stereo used along set to LPF (or HPF), you can select a cut power is switched on. with this power amplifier is turned up, off frequency from 50 to 120Hz. turn gain control on back of the power amplifier clockwise. If the sound distorts when the volume is turned up, turn the gain control counter-clockwise.
� Set the gain control to �NORMAL� when
this amplifier is connected to a Pioneer car stereo with RCA output jacks. If the sound level is too low or distorts, adjust the gain control.
� Adjust gain control to the �MIN� side
of �NORMAL� when this amplifier is connected to a Pioneer car stereo (High voltage output type).
Bass Boost Level Control
Bass level control can boost the level around the frequency selected by the bass boost frequency control from 0 to 12 dB.
LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch
Set LPF/HPF select switch as follows according to the type of speaer that is connected to speaker output connector and the car stereo sytem: LPF/HPF Select Audio frequency range Speaker Remarks Switch to be output Type
LPF (left) * � 50 to 120 Hz Sub-woofer Connect a sub-woofer. OFF (center) Full range HPF (right) * 50 120 Hz � Full range Use if you want to cut the very-low-frequency range* because it is not necessary using. * See the �Cut Off Frequency Control� section. � Level Control and Bass Boost
Bass Boost Frequency Control for the speakers you are
You can select a bass boost frequency from 40 to 120 Hz with the bass boost control.
Frequency Control can be adjusted only when the LPF/HPF select switch is set to a position other than HPF .
