thank you for that, now i can spurt it off and sound smart too lol

 

thats just standard electronics lol.

 

Wow.

I think it's funny when people say they can hear their exhaust through their subs.

What you were hearing, believe it or not, was coming from the alternator. As the coil inside the alternator rotates, it creates little electrical pulses which travel throughout the car's electrical system. If these pulses are picked up in the RCA cables (usually via induction because the RCAs are run close to a +12v wire), the amplifier will amplify them. If your amp is only hooked up to your subs, the result will be a low pitched booming noise which scales with RPM.

If your amp is powering all of your speakers, you will hear a higher pitched noise.

Here's a neat trick to prove that it's the alternator: put an underdrive pulley on a car with a system that has this problem. The pitch of the sound coming from the speakers will decrease!

Generally the RCA cables are the culprit, but there are other possibilities. A bad ground is another common one.

If the amp power lead runs alongside the RCA cables, this can be another source of the problem. Generally, you should run your RCA cables on one side of the car and your power and ground for the amp on the other side.

Glad you got it figured out. I just wanted to clear some things up.

 

lol. basically what i said lol

 

Basically, yes, but I explained more clearly and more specifically, with some extra details.

 

yes. i meant to add that in.. lol.. Yours was easier to understand lol.

 

Are your fingers on laughing gas or something? You put "lol" in everywhere, even when stuff isn't funny.

 

yes. yes they are... been working on my car fr the past few days... just got done painting a hood.. i think my respirator needs to be changed... heh.. oh well. will do that in the morning.