24
GM-X822,X722
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.
•
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).
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 12 dB.
Cut Off Frequency Control
If the LPF (LPF/HPF) select switch is
set to LPF (or HPF), you can select a cut
of
f frequency from 50 to 120Hz.
Bass Boost Frequency Control
Y
ou 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.
LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch
Set the LPF/HPF select switch as follows according to the type of speaer
that is connected to the speaker output connector and the car stereo sytem:
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.
*
See the “Cut Of
f Frequency Control” section.
Summary of Contents for GM-X722 X1R/ES
Page 3: ...3 GM X822 X722 2 4 3 1 10 7 9 8 5 6 8 11 2 EXPLODED VIEWS AND PARTS LIST 2 1 PACKING Fig 1 ...
Page 5: ...5 GM X822 X722 2 2 EXTERIOR Fig 2 ...
Page 11: ...11 GM X822 X722 ...
Page 13: ...13 GM X822 X722 5 6 7 8 5 6 7 8 A A B C D CN553 AN MOTOR Fig 5 C ...
Page 22: ...22 GM X822 X722 7 3 BLOCK DIAGRAM Fig 11 C A B ...
Page 28: ......
