38
GM-X942,X742
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 front 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.
Power Indicator
The power indicator lights when the
power is switched on.
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.
Cut Off Frequency Control
If the LPF/HPF select switch is set to
LPF (or HPF), you can select a cut off
frequency from 40 to 120 Hz.
Bass Boost Frequency Control
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.
LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch
Set the LPF/HPF select switch as follows according to the type of speaker
that is connected to the speaker output connector and the car stereo system:
LPF/HPF Select
Audio frequency range
Speaker
Remarks
Switch
to be output
Type
LPF
(left)
— 40 to 120 Hz
Subwoofer
Connect a subwoofer.
OFF
(center)
Full range
Full range
HPF (right)
40 to 120 Hz —
Full range
Use if you want to cut the
very-low-frequency range
because it is not necessary
for the speakers you are
using.
Содержание GM-X742
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