i'm getin engine noise on the amp for my mids and highs..???...is it the ground..rca's or wat?!?!?...its really bad and its pissing me off...can someone help please..???

thanx for ur help guys...

 

Make sure your amp power cord is not next to your RCA cables. If they are close, you'll get outside noise & high pitch engine noise distorting the signals going through the RCA. Also, be sure to keep those RCA cables as short as possible. (Strength lost over distance) I would also make sure you're using the correct gauge of the power/ground cables. Oh on that note, the ground/power wires should be the same gauge.

I hope this helps

 

make sure your grounding point is a clean bare metal contact (no paint, nothing.. ), make sure your grounding wire is the same guage as your power wires, separate your power wires from your RCA and speaker wires... I have my car audio wiring set up like this.. power wires down passenger side... Ai-net cable to processor, changer and amp down middle (this would be your RCAs), speaker wires down driver side... ground on a bare metal surface.. all amps and DSP grounded on same point.. also make sure you get shielded RCA cables that are designed for car audio applications... check that the head unit is grounded to bare metal also...

 

i had really bad alternator hissing. i rechecked my ground and power cables...they both looked fine and had good, clean connections.

then i replaced my rca cables and now the hissing is gone. i had expensive radio shack rcas in before, and now i have cheap stinger hyper rcas. even though these were the cheapest stinger cables available, they still work 100% better than the old, expensive radio shack ones. everyone i talked to said rca cables are all the same, but they're not. the radio shack ones just had gold connectors with no shielding whereas the stingers had mylar foil shielding.


[Modified by 92AccordCoupe, 9:29 AM 6/3/2002]

 

those are a billion times better, not only do they have the sheilding they are also twisted pair, this means the magnetic fields produced by each of the wires is twisted in such a way that they also act as a sheild against electromagnetic interference (the crap from your alt)...that's the same type of thing they do for computer network wire.

That hyper series cable was a GREAT buy (i have the 4 chan version..it's beautiful) and radioshack overprices like a **** anyways, so don't buy anything from there again unless you have to !

Goodstuff! Enjoy your stereo

-Rage

 

thanx for ur help guys...my power wires r running on my driver side and my rca's r running on my passenger side...so its not that i think.....do u think that it could be that i have two amps grounded to the same screw?????...i have the amp from my subs and the amp for my mids grounded on the same point..and it only happens when i have a lot of bass.?!?!?..

thanx for all ur help guys i'm gona try and ground the both amps seperate to see...

 

I randomly get it from my head unit, so you might check the ground for that s well. As for the bolt, not sure if two subs going to the same would do it, i always sand down to metal when i ground and have never had a problem, you might also try that....

 

Make sure your ground from each amp is as short as possible, less than 2feet for sure, in a perfect world less than a foot. I was getting all sorts of noise cause I ran my 2 ground wires into a spiltter, then just grounded the splitter. It was fine for one amp, but the other ended up having a 3ft long ground cable It is arguably better to have seperate grounds, assuming you are using the shortest path from the amp to the ground.

 

you said you have a "ground screw" try moving that ground wire to a bolt. What I did in my car was pulled all of the carpet out so I could get to a spot in the wheel well, drilled a hole (that does not interfere with anything). Then stuck a bolt through the hole. I then had a buddy tightening the inside while I worked on the outside of the car. Out there I put a wash, lock washer, and a nut. Then paint over all of it.

 

I have this problem also, but wouldn't getting a noise filter just eliminate it instead of rewiring with new rca's? Alot of the sound shops out here said to go to walmart and get a noise filter and install it on the power wire just before the amp.

 

I would not mess with noise filters. Adding filters will ultimately kill your dynamics. Keep your rcas away from your computer and power wire and make sure you have a very good ground at the amp and the deck(some times requires along with the factory ground, pulling the radio and connecting a wire from the little bolt on the back of it to a clean ground point in the car).