weird noise?

[RAZORSEDGE4 10+ year member]

so everything is hooked up grounded properly but there is a continuous sp? hummm poppy sound i cant discribe that doesnt stop even between songs and the same sound gets louder when the bass notes hit...i thought it might be the sub but ive tried three diff ones w same results? any ideas???

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[DammitJames 10+ year member]

sounds like a ground loop problem does the "hummm" change with engine rpm?

 

[fasfocus00 5,000+ posts]

i think you have your gains set improperly but it could be other things as well

 

[RAZORSEDGE4 10+ year member]

ill try both today see what i get

 

[RAZORSEDGE4 10+ year member]

tried both same constant feedback burping sound??