Fix FM reception issues with class "D" amp?
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Road Captain
Joined: May 2015
Posts: 668
Likes: 72
From: Wisconsin
Fix FM reception issues with class "D" amp?
Buddy has a D2000 amp. He loves his radio. I told him before we upgraded that the reception would suffer. His ball and chain is disappointed. Is there a modification that can get it back. Power ant.? Anything? Thanks
Tourer
Joined: Jan 2015
Posts: 488
Likes: 25
From: Orlando, FL
People really still listen to FM? LOL. I have not read of a fix but I do know that it's hit or miss. I had an alpine 455UTP and didn't have issues with stock head unit. Now have a Sony head deck with a Soundstream PN4.1000D but have not tried listening to FM. I use bluetooth for Pandora or Spotify or a USB stick with all of my music.
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From: SF Bay area
I like having AM & FM.... listening to live news, talk shows, sports, etc. on the road makes the miles go by faster. Plus local traffic reports are a commute must around here.
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Road Warrior
Joined: Mar 2010
Posts: 1,421
Likes: 277
From: USA
A mod that I know works is get a different amp. If it is that important to them I'm afraid that is the only solution. But I could be wrong.
AAWAV did some bench tests on six amps. Here is his thread:
https://www.hdforums.com/forum/audio...ch-6-amps.html
To see the FM reception results you have to go to the link he has at the bottom of post #1 and view the individual tests.
Hope this helps
AAWAV did some bench tests on six amps. Here is his thread:
https://www.hdforums.com/forum/audio...ch-6-amps.html
To see the FM reception results you have to go to the link he has at the bottom of post #1 and view the individual tests.
Hope this helps
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Road Captain
Joined: May 2015
Posts: 668
Likes: 72
From: Wisconsin
Good advise. I am currently looking into shielding. Found it pretty cheap. Blocks EMI interference. What I struggle with now is. Shield the antenna coming from the HU? Or wrap the amp up with it????? Shielding that should work in flexible graphite foil or wrap. Graphite seems to be the stuff to use. Can get some from China off of Ebay for around $20
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Joined: Jul 2015
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From: SF Bay area
One method I have had success with is making the power lines to the amp a "twisted pair". I ran them straight to the battery & twisted the neg and pos together all the way to the amp. It creates a shield of sorts to keep interference from migrating into the power leads.
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