29
GM-X1024,GM-X924
8. OPERATIONS AND SPECIFICATIONS
8.1 OPERATIONS
-
GM-X1024/X1R/UC
Setting the Unit
Gain Control
Adjusting the gain controls
A
and B will
help match the output of the car stereo to
the Pioneer amplifier
. Normally
, set the
switch to the “NORMAL” position. If
the output is low
, even when the volume
of the car stereo is turned up, turn these
controls clockwise. If there is distortion
when the volume of the car stereo is
turned up, turn these controls counter
-
clockwise.
•
If you only use one input plug, set the gain
controls for speaker outputs
A
and B to the
same position.
•
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 the gain control to the “MIN” side
of “NORMAL” when this amplifier is con-
nected to a Pioneer car stereo (High volt-
age output type).
Power Indicator
The power indicator lights when the
power is switched on.
RCA Input Select Switch
For two-channel input, slide this switch
to the left. For four
-channel input, slide
this switch to the right.
If the LPF/HPF select switch is set to
f
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
fr
equency
range
Speaker
Remarks
Switch
to be output
T
ype
LPF
(left)
— 50 to 120 Hz
Sub-woofer
Connect a sub-woofer
.
OFF
(center)
Full range
Full range
HPF (right)
50 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.
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