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4 English
Controls / Indicator
(W)
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25
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1 FILTER switch
This switch allow filtering of the speaker output
signals.
• OFF position:
The original sound without filtering is output.
• LPF (Low Pass Filter) position:
Only frequencies of 80 Hz or lower are output.
(Frequencies above 80 Hz are cut.)
The speaker output is automatically switched to
monaural (L+R).
2 INPUT SENSITIVITY control
Set this control according to the pre-output level
of the center unit connected with this unit, or
to the maximum power output of the genuine-
accessory car stereo.
Use the diagram on the right as a guide.
NOTE
For the pre-output level or the maximum power
output, refer to the <Specifications> in the
instruction manual of the center unit.
3 LINE IN terminal
4 Speaker level input terminals
NOTE
• The genuine-accessory car stereo shall have a
maximum power output of no more than 40 W.
• Do not connect the speaker output leads from
a power amplifier (Optional) to the speaker
level input terminals of this unit, for this may
cause malfunction or damage.
• Do not connect cables and leads to both RCA
cable input jacks and the speaker level input
terminals simultaneously, for this may cause
malfunction or damage.
• Connect the power control lead to a power
supply which can be turned ON/OFF by
the ignition key switch (ACC line). With this
connection, shock noise may be generated
when the power of the genuine-accessory car
stereo is switched ON/OFF.
5 Fuse (25 A)
6 Battery terminal
7 Ground terminal
8 Power control terminal
Controls the unit ON/OFF.
NOTE
Controls the unit power. Be sure to connect it with
all the systems.
9 Speaker output terminals
• Stereo Connections:
When you wish to use the unit as a stereo
amplifier, stereo connections are used.
The speakers to be connected should have an
impedance of 2 or greater. When multiple
speakers are to be connected, ensure that the
combined impedance is 2 or greater for each
channel.
• Bridged Connections:
When you wish to use the unit as a high-
output monaural amplifier, bridged
connections are used. (Make connections to
the LEFT channel 9 and the RIGHT channel ·
SPEAKER OUTPUT terminals.)
The speakers to be connected should have an
impedance of 4 or greater. When multiple
speakers are to be connected, ensure that the
combined impedance is 4 or greater.
2CAUTION
The rated input of the speakers should be no
less than the maximum output of the amplifier.
Otherwise malfunction may result.