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hey i hooked up a new amp to 2 of my highs. when the engine is not on, they sound great. but when i start the engine i get alot of high pitched noises that seem to grow louder when i accelerate. what could this mean?

alt whine where is your ground? and keep your RCA's away from your power wire

grounded under my seat but its grounded with a few other things as well. ill change the ground to a different location and see if that helps

keep all your grounds in one place. and move your rca's if the whine stops then move your RCA's

Find a thick piece of material used for structure in your car... Not just some random bolt

Bwcad1 wrote:alt whine where is your ground? and keep your RCA's away from your power wire

I thought power wire induced noise was one of those myths debunked by Richard Clark. Basically yeah, current running through a wire can induce noise in an adjacent rca cable, but fortunately for us the only time we get a lot of current running through a power wire is when the music is cranked and when its cranked this noise is minor enough in comparison to be inaudible.

As previously stated... look for a better ground... frame bolts work best (example: strut tower)

Fishy wrote:I thought power wire induced noise was one of those myths debunked by Richard Clark. Basically yeah, current running through a wire can induce noise in an adjacent rca cable, but fortunately for us the only time we get a lot of current running through a power wire is when the music is cranked and when its cranked this noise is minor enough in comparison to be inaudible.

nah its true i've experienced it first hand search the forum for it you will see a huge topic on it

could be a bad ground, or it could be the gain turned too high on the amp causing feedback

Bwcad1 wrote:nah its true i've experienced it first hand search the forum for it you will see a huge topic on it

Very true... I've fixed this problem on a couple of customers cars and my son in-laws lil brothers vehicle... All of them just trying to save time installing everything down the same side of the vehicle and they got a funny static through the system... seperate and I'll be, no more funny static