What
’
s what
GM-A5702
Front side
Rear side
GM-A3702
Front side
Rear side
To adjust the switch, use a flathead screwdri-
ver if needed.
1
LPF (low-pass filter) switch
Switch the settings based on the connected
speaker.
!
When the Subwoofer is connected:
Select
ON
. This eliminates high range
frequency and outputs low range fre-
quency.
!
When the full range speaker is con-
nected:
Select
OFF
.
OFF
outputs the entire fre-
quency range.
2
FREQ (cut off frequency) control
Cut off frequency selectable from 40 Hz to
500 Hz if the
LPF
select switch is set to
ON
.
3
BASS BOOST (bass boost level control)
switch
You can select a bass boost level from 0 dB,
6 dB and 12 dB.
4
GAIN (gain) control
If the output remains low, even when the car
stereo volume is turned up, turn the con-
trols to a lower level. If distortion occurs
when the car stereo volume is turned up,
turn these controls to a higher level.
!
For use with an RCA equipped car stereo
(standard output of 500 mV), set to the
NORMAL
position. For use with an RCA
equipped Pioneer car stereo, with maxi-
mum output of 4 V or more, adjust level
to match that of the car stereo output.
!
For use with an RCA equipped car stereo
with output of 4 V, set to the
HIGH
posi-
tion.
!
If you hear too much noise when using
the speaker input terminals, turn the
gain control to higher level.
5
Power indicator
The power indicator lights up to indicate
power ON.
En
Setting the unit
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