Rockford Punch 300.4 problem

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More info please.

Have you verified good ground connection?

Have you verified the fuse from the battery or connection is good which should be tested at the amps power terminals?

Have you verified the led power light is lit and you are getting remote voltage from the head unit to the amp?
 
OK either the tweeters have blown or on some of the power series speakers Rockford had capacitors in line to filter the tweeter. Some power series used the cross over units which had fuses or "lights" if you will that got brighter as the power was inreased to the tweeter and eventually would blow to protect the tweeter.

If you have the crossover boxes check the "light fuse" and if you dont have the cross over boxes check the capcitor on the back of the speaker to see if its blown or has become disconnected.
 
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