PDA

View Full Version : Engine noise w/aftermarket amp


mazda3rob
07-25-2004, 10:05 AM
I had an alpine 4 channel amp installed and I have a ticking noise in the speakers. Since I am using the stock deck and the speaker level inputs, I was told to use Line Output Converters and high quality RCAs and that should eliminate the problem. Does this sound right?

Oh yeah, here is what I had installed:

Alpine MRV-F240 (4 channel amp)
Infinity Bass link sub
Polk 5x7's in the doors.

Probably shouldn't have engine noise with that combonation ???

Thanks,

Rob
bluntman
07-25-2004, 10:28 AM
I have the same amp in my 3, but I am using a 4 channel LOC. I turned down the gains ever so slightly, tightened all of the amp connections and the noise went away.
mazda3rob
07-25-2004, 11:00 AM
I am having the LOC installed today with some high quality RCAs. I hope it takes care of it.

Thanks for your reply.


I have the same amp in my 3, but I am using a 4 channel LOC. I turned down the gains ever so slightly, tightened all of the amp connections and the noise went away.
yac2727
07-25-2004, 03:41 PM
I am having the LOC installed today with some high quality RCAs. I hope it takes care of it.

Thanks for your reply.
That ticking noise is very common in the Mazda 3 for some reason. I had it too, and the only way I got rid of it was moving around the ground wire of my amps until it went away. The ticking noise and the engine whine is a ground loop that is traveling through your signal path, if anything adding RCA's to the equation might make it worse rather than better. Good luck...
mazda3rob
07-25-2004, 06:03 PM
Well, they installed the LOCs and ran some good quality RCAs to the amp ... no more noise. Now I can listen to some tunes while I Zoom Zoom around town :-)

(bike) CONGRATS LANCE - #6 - YOU THE MAN!!!!


That ticking noise is very common in the Mazda 3 for some reason. I had it too, and the only way I got rid of it was moving around the ground wire of my amps until it went away. The ticking noise and the engine whine is a ground loop that is traveling through your signal path, if anything adding RCA's to the equation might make it worse rather than better. Good luck...