TROUBLE SHOOTING THE SYSTEM
We have put together this
Before you can properly address the problem, you must first find the component that is causing the problem. This will take patience and a process of elimination.
LOOK FOR….. | SOLUTION |
No Output |
|
Blown fuse | Replace |
Bad RCA Cable(s) | Replace |
+12V at power terminal | Check connection |
+12V at remote terminal | Check connection |
Grounding point clean and tight | Check for ground w/meter |
Head Unit’s fader not in center position | Set to center position |
Master & Slave settings | Confirm correct setting |
Low Output |
|
Check level adjustments | |
Bad RCA cable(s) | Replace |
Improper level matching | |
Master & Slave settings | Confirm correct setting |
Engine Noise |
|
Grounding points are clean and tight | Check for ground w/meter |
Ground all components at same point | Ground at same point |
Try different grounding point | Change for better ground |
Bad RCA cable(s) | Replace |
Use High Quality shielded RCA cables | Rejects inducted noise |
Low Vehicle charging system and/or battery | Fix and/or replace |
Red Protection L.E.D. illuminated |
|
Speaker short | Check speakers connection |
| for short circuit |
Speaker grounding out | Make sure speaker wires |
| Do not touch chassis ground |
Impedance too low | Check speaker impedance |
Overheating | Check mounting location |
| for Adequate air circulation |
SPECIFICATIONS
Input Voltage @ 11 - 14.4 VDC: QCA4400 | |
Dynamic Power | 2500 watts |
4 ohm | 4 x 400 watts |
4 ohms Bridged | 2 x 1200 watts |
2 ohm | 4 x 700 watts |
Frequency Resp. | |
S/N Ratio | >90dB |
Low Input Level | 200mV. - 5.8 V |
Crossover Type | Hi/Low Pass |
Crossover Freq. (Lowpass) | 55Hz - 400Hz |
Crossover Slope | 12db per octave |
Bass EQ. | 18dB @ 45Hz |
Size (L x W x H) | 14.75 x 9.75 x 2.6 |
Fuse Rating | 2 x 25 amp |
Input Voltage @ 11 - 14.4 VDC: | QCA2500D | QCA3500D | QCA4500D |
Dynamic Power | 2500 watts | 3500 watts | 4500 watts |
4 ohm | 1 x 625 watts | 1 x 750 watts | 1 x 875 watts |
2 ohm | 1 x 1500 watts | 1 x 1750 watts | 1 x 2250 watts |
1 ohm | 1 x 2500 watts | 1 x 3500 watts | 1 x 4500 watts |
Frequency Resp. | 20Hz - 250Hz | 20Hz - 250Hz | 20Hz - 250Hz |
S/N Ratio | >90dB | >90dB | >90dB |
Low Input Level | 246mV - 5.9V | 246mV - 5.9V | 246mV - 5.9V |
Crossover Type | Low Pass | Low Pass | Low Pass |
Crossover Freq. (Lowpass) | 40Hz - 150Hz | 40Hz - 150Hz | 40Hz - 150Hz |
Crossover Slope | 18dB per octave | 18dB per octave | 18dB per octave |
Bass EQ. | 18dB @ 45Hz | 18dB @ 45Hz | 18dB @ 45Hz |
Subsonic Filter | 20Hz - 50Hz | 20Hz - 50Hz | 20Hz - 50Hz |
Remote Control Included | optional | optional | optional |
Fuse Rating | 2 x 20 amp | 2 x 30 amp | 3 x 30 amp |
Due to continuous improvment of the product the specifications are subject to change without notice.
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