F*cking audio store

 

Gold Member
Username: Juliob

Santo DomingoDominican Re...

Post Number: 3638
Registered: Dec-05
my sister went to an audio shop and bought some speakers, i gave her my phase linear amp. Is a decent lil system, no sub yet, but she has the tipical cr4ppy problem. Engine noise through the speakers.

I think there are 2 problems:

1-bad ground
2- RCAs

please quick response
 

Gold Member
Username: Southernrebel

Monroe, Louisiana DD 9515d~~]...

Post Number: 3972
Registered: Mar-04
they installed it...its their problem.


prolly a bad ground.
 

New member
Username: Dj_007

Carlisle, KY US

Post Number: 10
Registered: Dec-06
1. if it is a GM product try the alternator often when they are going bad they create engine noise...

2. check RCA.. a way to do this is put a multimeter on DC volts and touch one prong to the ground part of the RCA and then touch the other one to the ground place on the amp once it is grounded... and if it has more than .5 difference then you have a ground loop bad..

ok usually a good fix is to take like a 10 gage wire and use the extra grounding screw location on teh back of the CD player and make a good second ground to the chassis of the CD player.. this is usually a good fix to the problem..
 

Gold Member
Username: Juliob

Santo DomingoDominican Re...

Post Number: 3643
Registered: Dec-05
Derek, is not a GM product, is a honda civic and is only 100w rms, it has 1 day installed so there's no way the alt is f*cked. I still believe the ground is a problem.

Canaan i know that's their problem, but i'm not going to argue with some idiots about a stupid ground. i'll do it and i'll tell ya how it goes. It's not my system, i'm just trying to help and i wanted to be sure instead of start moving wires hehe.
 

Bronze Member
Username: Dj_007

Carlisle, KY US

Post Number: 15
Registered: Dec-06
eyah but try that good ground to the chassis of the radio.. that fixed my ground noises.. and usually does..
 

Silver Member
Username: Seth_walker

U.S.A.

Post Number: 173
Registered: Jul-05
Make sure the RCA's and the ground aren't close to each other.
 

Bronze Member
Username: Dj_007

Carlisle, KY US

Post Number: 20
Registered: Dec-06
i have actually wrapped the RCAs around the groud before simply because im in a hurry and never had a problem with that so long as the ground and RCAs are in good shap.. and these are new.. soo..
 

Gold Member
Username: Carguy

Post Number: 5781
Registered: Nov-04
You get alternator noise cause of dc on input signal. You can get ground isolator for $18 or try and get a better ground connection somewhere.
 

Gold Member
Username: Adddisorder

West palm, Florida

Post Number: 2219
Registered: Jan-06
yeah id try re grounding
 

Silver Member
Username: Seth_walker

U.S.A.

Post Number: 174
Registered: Jul-05
My bad. I meant the RCA and the power wire. oops.
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