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digital amp radio interference

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=47416
Printed Date: May 10, 2025 at 9:28 AM


Topic: digital amp radio interference

Posted By: dwarren
Subject: digital amp radio interference
Date Posted: January 11, 2005 at 12:00 AM

I have heard that "digital" amps can cause interference in radio reception, especially when mounted in the trunk near the antenna. And I wonder if this is happening to my car because lately my reception hasn't been as strong as it once was.  Any validity to this? How can it be resolved?

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Replies:

Posted By: DYohn
Date Posted: January 12, 2005 at 12:37 PM
I suppose it is possible because of the high switching speeds used so that the digital circuitry can simulate analog AC (ie: sound) but they should have proper RF shielding to prevent it.  If you are hearing increased static on certain stations then yes, it is possible.  If your reception has simply decreased across the board, it is not likely due to amplifier produced RF.  If your reception is worse with an aftermarket head unit as compared to an OEM one, then certainly that is true as most aftermarket tuners are not that sensitive.

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