Symptom

Solution

 

 

The sound is

• Make sure that the level control(s) is set

distorted.

to match the signal level of the head unit.

 

• Make sure that the crossover

 

frequencies have been correctly set.

 

• Make sure that there are no shorts on

 

the speaker leads.

 

 

There is a high

Make sure that the RCA patch cords are

squeal noise

correctly grounded.

coming from

 

the speakers.

 

 

 

Sub-woofers

Always test the speakers and speaker wires.

are not

Make sure the speakers are connected with

working.

the correct polarity (positive (+) amplifier

 

output to positive (+) speaker terminal,

 

negative (-) amplifier output to negative (-)

 

speaker terminal).

 

 

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