Pioneer GM-X1022/X1R/UC, Руководство по обслуживанию

Страница: 20 / 23

Gain Control
If the sound le
v
el is too lo
w
,
ev
en when
the v
olume of the car stereo used along
with this po
wer amplif
ier is turned up,
turn gain control on the back of the po
wer amplif
ier clockwise. If the sound
distorts when the v
olume is turned up,
turn the g
ain control counter
-clockwise.
•
Set the gain control to “NORMAL”
when
this amplif
ier is connected to a Pioneer car
stereo with RCA output jacks. If the sound le
v
el is too lo
w or distorts,
adjust the gain
control.
•
Adjust the gain control to the “MIN”
side
of “NORMAL”
when this amplif
ier is con-
nected to a Pioneer car stereo (High v
olt-
age output type).
Bass Boost Level Control
Bass boost le
v
el control can boost the
le
v
el around the frequenc
y selected by
the bass boost frequenc
y control from 0
to 12 dB.
Cut Off Frequency Control
If the LPF select switch is set to LPF
,
you can select a cut of
f frequenc
y from
50 to 120Hz.
Bass Boost Frequency Control(GM-X1022)
Y
ou can select a bass boost frequenc
y
from 40 to 120 Hz with the bass boost control.
Fig. 10
Power Indicator
The po
wer indicator lights when the
po
wer is switched on.
LPF (Low-Pass Filter) Select Switch
Set the LPF select switch as follo
ws according to the type of speak
er that
is connected to the speak
er output connector and the car stereo system:
LPF Select
A
udio fr
equency range
Speak
er
Remarks
Switch
to be output
T
ype
ON
(right)
* — 50 to 120 Hz
Sub-w
oofer
Connect a sub-w
oofer
.
OFF
(left)
Full range
Full range
*
See the “Cut Of
f Frequenc
y Control”
section.
20
GM-X922, GM-X1022
8. OPERATIONS AND SPECIFICATIONS
-
SETTING THE UNIT