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

(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

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