Hello,


I am helping a friend with his 1997 Cobra. He has a JVC headunit, and the harness adapter kit.

I helped him figure out how to wire it back (It had been cut up) and fixed his mistake of not putting power to the amp switch wire.

But, once we got it all working, the highs are great and sound clear, but the lows sound weak, and very distorted.

He doesn't know if the amps have ever worked, and the speakers are Alpine units that have been verified to be working, but they sound "blown out". The tweeters sound great and clear.

I have been wiring vehicles and homes for a long time now, and I can say the subs are wired correctly, but even the subs in the doors are weak.

We also tried swapping the amplifier that sits under the headunit with one from a previous year and the results are exactly the same.

I appreciate any advice. I really don't think that the amplifiers are blown, but obviously I could be wrong. Any help is greatly appreciated.


Thanks!





Dave

 

did you use the speaker level output of the deck, or the rca's?

 

I used the speaker level output from the radio, I read that the Mach 460 inputs were high level, is this correct?

 

yes and no..... Did you connect the blue/white remote turn on to the blue amp turn on in the factory hrns?

 

Yes.. He didn't, which is why he thought the 460 system was broken. What do you mean about the level?