amp is buzzing

[Mattp13 10+ year member]

I have a hifionics amp and it is buzzing my sub and producing sound going with my truck when and acceraltions.What could be the problem?

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[azimuth 5,000+ posts]

ground loop

 

[Mattp13 10+ year member]

is my ground cable messed up or is it the power cable

 

[Mattp13 10+ year member]

i check the ground rcas remote and ran a new power cable. is there something i can do to check to see if its from the head unit.

 

[Pioneer~Saturn 5,000+ posts]

To truely see if thats the case...hook the system upto another headunit and see...if its still doing it I would think of possibly running the ground for your amp all the way back to the negative of the battery with 0-gauge if possible..

 

[azimuth 5,000+ posts]

first, i would ground the head unit myself, and not use the factory harness for ground. i would also make sure my ground on the amp is sufficiently touching a good bare metal surface and bolted down tight.

 

[Mattp13 10+ year member]

ok i did check the ground and it bolt down and bare metal i wire brush on a drill and went to town on it. where would be a good place to ground the head unit off at without picking up road noise

 

[duce2k 10+ year member]

Connect an Ipod or a portable cd player to the amp if you still get noise then it's on the amp side, ground, connectors, etc. If you don't then it's the HU