Gain control, Bass boost level control, Power indicator – Pioneer PRS-X220 User Manual
Page 2: Rfc (beat frequency control) switch, Setting the unit
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Setting the Unit
Gain Control
If the sound level is too low, even when
the volume of the car stereo used along
with this power amplifier is turned up,
turn gain control on the back of the
power amplifier clockwise. If the sound
distorts when the volume is turned up,
turn the gain control counter-clockwise.
• When using with an RCA equipped car
stereo (standard output of 500 mV), set to
the NORMAL position. When using with
an RCA equipped Pioneer car stereo with
max. output of 4 V or more, adjust level to
match the car stereo output level.
Bass Boost Level Control______
Bass boost level control can boost the
level around the frequency selected by
the bass boost frequency control from 0
to 18 dB.
Bass Boost Frequency Control
(PRS-X720 and PRS-X320)
You can select a bass boost frequency
from 40 to 120 Hz with the bass boost
control.
• Bass Boost Level Control and Bass Boost
Frequency Control can be adjusted only
when the LPF/HPF select switch is set to a
position other than HPF.
Power Indicator
The power indicator lights when the
power is switched on.
RFC (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
screwdriver.