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How much power does the radio your using do and what kind is it?

 

I bet that the modulation limiter has been clipped in the radio and that is whats causing this. Have someone look to see if it has. If so then have it put back in and set for no more than 100% modulation. I bet that will take care of your problem!

 

Dont run the key down to 1.5 watts. If your running a really low key into the amp with a boat load of swing, with the amp on ( swing from say 100 watts to 850 ) then that will cause it to sound like trash as well,BIG TIME!!! I would set the key at 3 to 4 watts and see if that clears it up. Remember that the the old saying...."you need a long of swing to get out.....is a bunch of crap!

 

I can run my Mosfet Cobra 29 down to 1.5 watts ( swing to 40 watts ) and with the amp on it sounds like total shiz. Set it on 4 to 5 watts and its as clean as can be. And no you will NOT blow the amp up running it with a 4 to 5 watt key. My 5 pill has been in my car for over 5 years at that setting and still runs like new...........and i hammer the hell out of the amp every day!