Справочник Пользователя для Quantum Audio QCA4400

ROUBLE SHOOTING THE SYSTEM

We have put together this trouble-shooting guide if you experience problems after 

installing the amplifier. Please keep in mind that the majority of problems incurred are 

caused by improper installation and not the equipment itself. In addition, there are many 

components in the system that could cause various signal problems such as inducted 

electrical noise and engine noise.

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   

 

          Re-adjust

 

Bad RCA cable(s)  

 

 

          Replace

 

Improper level matching   

 

          Re-adjust

 

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

PECIFICATIONS

 

 

 

Input Voltage @ 11 - 14.4 VDC:

Dynamic Power

 

4 ohm

 

4 ohms Bridged

 

2 ohm

Frequency Resp.

S/N Ratio (A-weight)

Low Input Level

Crossover Type

Crossover Freq. (Lowpass)

Crossover Slope

Bass EQ.

Size  (L x W x H)

Fuse Rating

Input Voltage @ 11 - 14.4 VDC:

Dynamic Power

 

4 ohm

 

2 ohm

 

1 ohm

Frequency Resp.

S/N Ratio (A-weight)

Low Input Level

Crossover Type

Crossover Freq. (Lowpass)

Crossover Slope

Bass EQ.

Subsonic Filter

Remote Control Included

Fuse Rating

 

 

   

13

14

4500 watts

1 x 875 watts

1 x 2250 watts

1 x 4500 watts

20Hz - 250Hz

>90dB

246mV - 5.9V

Low Pass

40Hz - 150Hz

18dB per octave

18dB @ 45Hz

20Hz - 50Hz

optional

3 x 30 amp

2500 watts

4 x 400 watts

2 x 1200 watts

4 x 700 watts

10Hz-20Khz

>90dB

200mV. - 5.8 V

Hi/Low Pass

55Hz - 400Hz

12db per octave

18dB @ 45Hz

14.75 x 9.75 x 2.6

2 x 25 amp

2500 watts

1 x 625 watts 

1 x 1500 watts

1 x 2500 watts

20Hz - 250Hz

>90dB

246mV - 5.9V

Low Pass

40Hz - 150Hz

18dB per octave

18dB @ 45Hz

20Hz - 50Hz

optional

2 x 20 amp

3500 watts

1 x 750 watts

1 x 1750 watts

1 x 3500 watts

20Hz - 250Hz

>90dB

246mV - 5.9V

Low Pass

40Hz - 150Hz

18dB per octave

18dB @ 45Hz

20Hz - 50Hz

optional

2 x 30 amp

Due to continuous improvment of the product the specifications are subject to change without notice.