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Troubleshooting Guide
What might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring.
Before calling service, first check the following table for possible problems.
PROBLEM POSSIBLE CAUSE SOLUTION
No sound.
(No sound from one side.)
(Blown fuse.)
• Input (or output) cables are
disconnected.
• Protection circuit may be activated.
• Volume is too high.
• The speaker cord is shorted.
• Connect the input (or output)
cables.
• Check connections by referring to
<Indicator>.
• Replace the fuse and use lower
volume.
• After check the speaker cord
and fixing the cause of the short,
replace the fuse.
The output level is too small
(or too large).
The input sensitivity adjusting
control is not set to the correct
position.
Adjust the control correctly referring
to <Controls>.
The sound quality is bad.
(The sound is distorted.)
• The speakers wire are connected
with wrong + / -polarity.
• A speaker wire is pinched by a
screw in the car body.
• The switches may be set
improperly.
• Connect them properly checking
the + / - of the terminals and
wires well.
• Connect the speaker wire again so
that it is not pinched by anything.
• Set switches properly by referring
to <Controls>.
Specifications
Specifications subject to change without notice.
Audio Section
Max Power Output ...................................................................................................................................................................................1000 W × 1
Rated Power Output
(4 Ω) (20 Hz – 200 Hz, 0.5 % THD) ....................................................................................................................................................200 W × 1
(2 Ω) (100 Hz, 0.5 % THD) ......................................................................................................................................................................400 W × 1
(1 Ω) (100 Hz, 1.0 % THD) ......................................................................................................................................................................500 W × 1
Frequency Response (+0, –3 dB) .................................................................................................................................................5 Hz – 200 Hz
Sensitivity (rated output) (MAX.) ..................................................................................................................................................................... 0.2 V
Sensitivity (rated output) (MIN.) ...................................................................................................................................................................... 5.0 V
Signal to Noise Ratio ...........................................................................................................................................................................................100 dB
Input Impedance .....................................................................................................................................................................................................10 kΩ
Low Pass Filter Frequency (18 dB/oct.) ..................................................................................................................50 – 200 Hz (variable)
Infrasonic Filter Frequency (18 dB/oct.) .............................................................................................................................OFF / 15 / 25 Hz
Bass Boost Circuit (90 Hz) .................................................................................................................................................................OFF / +12 dB
General
Operating Voltage ..................................................................................................................................................14.4 V (11 – 16 V allowable)
Current Consumption (4 Ω, 10 % THD) .........................................................................................................................................................31 A
Dimensions (W × H × D) .....................................................................................................................................................285 × 57 × 268 mm
Weight .........................................................................................................................................................................................................................2.96 kg