I REALLY doubt there is anything I can do to fix this, but I figured I'd ask just in case.

I have a 4-channel MTX amp. One of the channels outputs a "static" sound constantly. It is a constant volume - it doesn't deviate when I turn my volume up/down. It does, however, stop buzzing when I turn my radio completely off. Is there anything I can do to remidy this? It's annoying as hell, but it doesn't warrant a $300 fix, which I am expecting if I contact MTX. I have already wired it to a rear speaker so it is as far away from me as possible, but I can't think of anything else to do besides just unplugging the speaker.

Thanks for the help

Try grounding your RCA's better are you using a Pioneer Headunit by chance?

Heres a Guide and explination:

http://bcae1.com/images/rca/temporaryrcashieldrepair.html

Does only one channel do it or the 2 on that side? if only ONE channel does this then could be a short in the amplifier my Kicker KX600.4 did this and I had to replace it because it was all haywire. Another choice is to hook all 4 speakers up to 2 channels instead of all 4 for a 2 ohm load and run them off 1 side of the amplifier which is what I've been doing since I don't have an extra pair of RCA's or terminal screws for the other 2 channels.

I had this happen before when a heat sink was faulty. Have also seen this wehn soldering around the rca in and the channel out have cracked and become movable. See if any of the connections are loose and replce the rca's maybe. have you tried this channel on a different speaker?

He said it was the only channel that did it... which has happened to me im guessing bad RCA shielding, bad channel or like you said a fautly amplifier, test new RCA's, new speaker and at worst try another amp in the vehicle.

Sorry everyone, I got suspended for 3 days for making a joke lol



Yes, I have a Pioneer head unit. And it is definitely only the one channel on my amp. I have removed my head unit and swapped all the RCA wires around. I have confirmed that all 4 RCA outputs on my stereo are working, as I got each to produce a sound without the static noise (as long as I didn't pass it through the faulty amp channel).

I completely forgot you can wire your amp differently - that would be a great idea. So what you are saying is I could essentially make my 4-channel amp a 2-channel amp? If I remember correctly, the only downside to this is you lose the front/back fade or something (which is not a big deal if I can get rid of the static).

However, would I not be using my amp to its full potential if I didn't use that one channel? IE if I ran 2 speakers off the same channel, wouldn't it be splitting the power between the speakers (for instance I think it is 50 watts RMS per channel, so wouldn't the two speakers only be getting 25 watts each)?



Thanks for the information. I haven't taken apart my amp yet to inspect any loose components, but I will now - especially now that I know what I should be looking for. I have determined that all 4 speakers work fine, and that it is just the one channel on my amp. This is how I managed to mix up the wires and got the static to the furthest speaker from me (I also mixed the RCA wires in the back of the stereo so I could keep the correct fading options).



I believe the RCA's are fine, as I have used all sets of RCA's on the one channel, and I still get the static. Unless I have missed something, I am 100% sure it is internally on my amp.