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GM-X922, GM-X1022
20
- SETTING THE UNIT
Gain Cut Off Frequency Control Power Indicator
sound level too low, even If LPF select switch is set to LPF, The power indicator lights when the volume of the car stereo used along you can select a cut off frequency from power is switched on. with this power amplifier is turned up, 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).
8. OPERATIONS AND SPECIFICATIONS
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) Select Switch
Set LPF select switch as follows according to the type of speaker that is connected to speaker output connector and the car stereo system:
LPF Select Audio frequency range Speaker Remarks
Bass Boost Frequency Switch to be output Type Control(GM-X1022) ON (right) * � 50 to 120 Hz Sub-woofer Connect a sub-woofer.
OFF (left) Full range * See the �Cut Off Frequency Control� section. control.
You can select a bass boost frequency from 40 to 120 Hz with the bass boost
