Amp Isolation

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=6582
Printed Date: July 26, 2025 at 5:41 PM

Topic: Amp Isolation

Posted By: cbdenver
Subject: Amp Isolation
Date Posted: December 12, 2002 at 11:24 AM

All,

Another basic question for you: do I need to isolate the amp case from the metal floor? Seems kind of pointless when the ground wire is attached to the flloor right there too, but thought I would run it by you guys.

Thanks!

Replies:

Posted By: ccaudio
Date Posted: December 12, 2002 at 11:33 AM

yes you should because you can ground out the amp if you do that

Posted By: chasesaccessori
Date Posted: December 12, 2002 at 11:37 AM

Now it depends upon how old the amp is!

The older amps had to be isolated from the chassis for that reason. The new amps do not need to be, the circuitry is protected.

-------------
(owner/installer)
Chase's Accessories
Ridgecrest, CA
in business since 92

Posted By: cbdenver
Date Posted: December 12, 2002 at 11:38 AM

The amp is a RF Punch 400a4 (year 2000 I think).

Posted By: ccaudio
Date Posted: December 12, 2002 at 11:40 AM

i would to be on the safe side

Posted By: chasesaccessori
Date Posted: December 12, 2002 at 11:46 AM

Not a problem. I've installed about a billion of those with no problems. From about 96 on back is where I would worry about that problem.

-------------
(owner/installer)
Chase's Accessories
Ridgecrest, CA
in business since 92

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