At witts end with speaker buzz!! HELP!

[hermgreen03]

So i have literally replaced my rca's, went from cca to ofc power and ground wires. I have cleaned and checked all my grounds. I have done the big 3 and rerouted all my wires...power wires away from signal wires. The noise is not alternator or engine related. When I unplug my rca's that run my.subwoofer the noise goes away. As soon as they get plugged in, the noise comes back through too my front speakers. I can't hear the noise at half volume and wven with my sub gain turned all the way down you hear it. What could this be. Im using a 4 channel amp, 2 front channels for components and channels 3 and 4 bridged for my sub. Im too the point of buying a separate monoblock for my sub and seeing if the noise goes away. Im lost here please help

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[OzNath 10+ year member]

Probs your amp.

 

[phemps 10+ year member]

yea are you able to test a different amp in there?

 

[hermgreen03]

Not unless I buy a new one, I bought it from sonic.in Feb. Its a pretty new amp.

 

[bradl79 10+ year member]

Good u r under warranty. Get it replaced. Or go to best buy and buy one try it out and then return it

 

[hermgreen03]

What would cause a amp to do this? Its done it since dayb1. I just did a lot of.research and tried to figure it out myself....needless to say that didn't work lol

 

[bradl79 10+ year member]

What is the model of the amp. U could have just got a lemon. An amp shouldn't do that.

 

[hermgreen03]

It's a MB Quart OA 800. I just got off the phone with sonic, they want me to try a few things before they file a warranty claim.

 

[hermgreen03]

bradl79, not to go off topic, but what is your experience with GTMAT?

 

[hermgreen03]

I have one last thing to do before I can get a exchange. Apparently this amp needs a mono signal when its bridged. I believe its on 4 channel right now. I have to switch it to two channel.