getting noise from subs

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=79594
Printed Date: April 29, 2024 at 12:39 AM

Topic: getting noise from subs

Posted By: 187smurf187
Subject: getting noise from subs
Date Posted: June 25, 2006 at 8:34 AM

I installed some subs.Im having a problem because when the car is on the subs make alot of noise it kind of sounds like a bad exhaust in the car.sometimes it stops but most of the time that the car is on its noisy.but when the car isnt on it sounds clear no nosies no nothin.i was thinking it might be that the bayyery was too close to the amp beacuse i remeber i read something like that because my battery is in the trunk.

Thanks in advance for any info.

-------------
B@zZ SmurF B@zZ

Replies:

Posted By: DYohn
Date Posted: June 25, 2006 at 8:49 AM

This is caused by one or a combination of several things. usually it is a sign the amplifier is overloaded, either because the gain is way too high or the impedance load is way too low or both. It could also be bad RCA cables or a bad graound. Or both, or all four. Or it could simply be the amp is fried.

-------------
Support the12volt.com

Posted By: 187smurf187
Date Posted: June 25, 2006 at 10:26 AM

But if the amp is fried wouldnt it stop workin?.........so how could i fix the the gain or the impedance load problem?

-------------
B@zZ SmurF B@zZ

Posted By: Velocity Motors
Date Posted: June 25, 2006 at 10:26 AM

I'm steering towards that the ground is bad or the gains are set too high

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: Velocity Motors
Date Posted: June 25, 2006 at 10:30 AM

Look on the side or top of the amp for the word GAIN and turn the dial/knob counter clockwise all the way. Now play something on the system and slowly turn it clockwise and listen for the noise. If it's still there check the ground and ensure that it's free of paint, dirt and debrise or oil.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: 187smurf187
Date Posted: June 25, 2006 at 10:46 AM

ok ill try that.....is it ok if i ground the amp to the - battery teminal i think it would be the same wouldnt it since my battery is in the back its about 2 to 3 feet from the amp

-------------
B@zZ SmurF B@zZ