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Problem for Infinity 475A Car Audio Amplifier

Infinity 475a amplifier makes a high tone

By nightrider_7 on May 31, 2009

" "

my infinity amp makes a high ringing only when the car is on. if i listen 2 it in accesory moge of my car it goes away but when the car is on and running it makes a high pitch wine threw my speakers. also if i rev my car up it gets louder... any ideas on my problem or how to fix it please let me no. thnx. oh and both my head unit and amp are brand new.

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Best Solution

posted on May 31, 2009

smartr10U

Rank: Guru Car Audio & Electronics

Expert
Rating: 88%, 632 votes

Your stereo is picking up alternator whine. If you're good, you can make the motor fit with the song... kidding.
you can purchase a noise filter that will fit on the ground line of the alternator.... here's a few to scope out online

this will get it out for ya...
k

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