tripnbeats

Guys whats up this is the first problem I have run into since i did this system i bought some off the hook shielded cables and got soundstream amps i did everything correctly but the thing is i get some funky alterntor noise I put the dsp processor and brain to the headunit in the compartments behind the driver and passenger and one 4 channel amp behind the pasenger the sub amp is in the back i have no probs with the sub no pops or hard hits when its shut off or turned on nothing the problem is only with the highs and when i take the wires out and run them externally they dont produce any noise but when inside the compartment the noise is crazy whoever could help me out thanks i owe u one. plus this is the 4th set of of cables i went through

SteveZzz

Perhaps the first thing you should try is some capitalization, punctuation and paragraphs!

tripnbeats

ok great rather than spitting something stupid out of ur mouth how about some help i'm in a rush to get out of work i have no time for grammer corrections right now

MonkeyBoy

You need better grounding. Find out where you have your head unit, amps, cap if any ... hell everything, and make sure it is grounded properly.

Encore

Are your RCA's, and power wire down the same side? Make sure your RCA's do not run w/ any power wires including factory wires. Is your amp or RCA's sitting on top of the fuel pump? Its also not a bad idea to ground everything in your stereo at one point. Ive got 10ga going from the head units ground to the amps ground. Noise can be a ***** to get out, good luck.

tripnbeats

Thanks, I tried the ground also i forgot to mention. Its not the ground. I'm not sure if its the RCA's or the actual positioning of this equipment cuz the DSP and brain and amp arent too far from eachother u think that might be a prob?

alphared

have you tried a ground loop isolator? should filter out any low level noises.

tripnbeats

hmmmmm, Very interesting I will try that thanks.

Encore

A ground loop isolator is just a band aid. There is something else going on. I would use a ground loop isolator only as my last resort. Are you using the factory ground on the head unit? The factory ground in most cars is very noisey. Try running a ground wire just on top of the carpet and hook it to your amps DSP etc. grounds to see if that fixes your problem. Using multiple ground points is what causes a ground loop.

MSGarrett1

I agree w/ above. A ground-loop isolator is just a cover up. It is definitely a LAST RESORT. Try a better headunit ground (non-factory). I will try to find you a link to a website that will take you through a lengthy step-by-step on how to trouble-shoot alternator whine and post it here.

AndyB

Actually, you WOULD get more resposnes if reading your posting was not so difficult.

MSGarrett1

Here's a link to a step-by-step trouble shooting of alternator whine: http://www.termpro.com/articles/noise.html

The only thing I would add to this article is that sometimes the most expensive "noise-shielded" RCAs are NOT the best. What you want in RCA cables are a braided twisted pair. THAT's IT. In fact, the super-duper, ultra shielded cables can actually function as noise "antennas" and exaccerbate your problem.

fresno350

definetly has to be your ground or where your power is coming from. is your power directly from the battery? how long is your ground wire to your amps? should be no more than a foot and a half

tripnbeats

MSGarrett1 thanks i appreciate the link. i am goin to try it right now