Controls |
| Troubleshooting Guide |
p q
s | 40W |
| 30W |
| 20W |
| 15W |
r | s |
t u v
NOTE
The control panel locates under the dressing cover. Remove the cover to access to its controls for adjustment. (See page 3)
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.
No sound. (Blown fuse.)
✔Input (or output) cables are disconnected.
☞Connect the input (or output) cables.
✔Protection circuit may be activated.
☞Check connections by referring to <Protection function>.
✔Volume is too high.
☞Replace the fuse and use lower volume.
✔The speaker cord is shorted.
☞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 9 / · polarity.
☞Connect them properly checking the 9 / · of the terminals and wires well.
✔A speaker wire is pinched by a screw in the car body.
☞Connect the speaker wire again so that it is not pinched by anything.
✔The switches may be set improperly.
☞Set switches properly by referring to <Controls>.
1Power indicator
When the power is turned on, the Power indicator lights.
If the Power indicator does not light when the power is turned on, the protection function may be activated. Check whether there is any indication of trouble. Refer to <Protection function> (page 3).
2Illumination
3FILTER FREQUENCY control (A.ch/B.ch)
Sets the cutoff frequency when the "FILTER" switch is set to "LPF" or "HPF".
4INPUT SENSITIVITY control (A.ch/B.ch)
Set this control according to the
Use the diagram on the right as a guide.
The sensitivities of amplifiers A and B can be adjusted independently.
5FILTER switch (A.ch/B.ch)
This switch allows to apply
•HPF (High-Pass Filter) position:
The filter outputs the band of higher frequencies than the frequency set with the "FILTER FREQUENCY" control.
•OFF position:
The entire bandwidth is output without filtering.
•LPF (Low-Pass Filter) position:
The filter outputs the band of lower frequencies than the frequency set with the "FILTER FREQUENCY" control.
6OPERATION switch (A.ch/B.ch)
The amplification methods of the signals input to amplifiers A and B can be selected independently according to the setting of this switch.
•STEREO position:
The amplifier can be used as a stereo amplifier.
•MONO (Lch) position:
Amplifies the signal input from the left side only. Set to this position and make bridged connections to use as a
7BASS BOOST switch (B.ch)
Setting this switch to "ON" emphasizes the bass. You can use the BASS BOOST for amplifier B only.
•ON position:
BASS BOOST is +18 dB.
•OFF position:
BASS BOOST is OFF.
Specifications
CEA-2006
Primary Power Output Ratings (RMS Watts per |
|
channel @ 4 ohms, 1 % THD+N) | 50 W × 4 |
Signal to Noise Ratio |
|
(Reference: 1Watt into 4 ohms) | 80 dBA |
Audio Section
Max Power Output | 600 W (150 W × 4) |
Rated Power Output (+B = 14.4 V) |
|
Normal (4 Ω) (20 Hz – 20 kHz, 0.08 % THD) | 50 W × 4 |
Normal (4 Ω) (DIN : 45324 , +B = 14.4V) | 50 W × 4 |
Normal (2 Ω) (1 kHz, 0.8 % THD) | 75 W × 4 |
Bridged (4 Ω) (1 kHz, 0.8 % THD) | 180 W × 2 |
Frequency Response (+0, | 5 Hz – 50 kHz |
Sensitivity (rated output) | 0.2 V – 5.0 V |
Input Impedance | 10 kΩ |
Signal to Noise Ratio | 100 dB |
Low Pass Filter Frequency | 50 – 200 Hz (variable) |
High Pass Filter Frequency | 50 – 200 Hz (variable) |
Bass Boost Circuit (40 Hz) (B channel) | 0/ +18 dB |
General
Operating Voltage | 14.4 V (11 – 16 V allowable) | |
Current Consumption | 40 | A |
Installation Size (W × H × D) | 280 × 59 × 238 mm | |
| 11 | × |
Weight | 2.8 kg (6.2 lbs) | |
* Specifications subject to change without notice.
English 5