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Scratching noise


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Hey what's up guys. Buddy asked me to check his radio out. It's a kenwood KFC - 152. Whenever it goes past around 15 volume it makes a scratching noise and gets worse as the volume goes up. I checked the power ground and speaker connections behind the dash and there all good. What would cause this. I'll take a video right now and upload it. Thanks for any help .

subwoofers - two eclipse 88120s

box - 3.4 cubes tuned to 32 hz

amps - aq1200 and pheonix gold zx450

New build :

2 obsidian audio 15s

same amp

6.1 cubic foot box tuned to 32 hz in a civic hatch

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And I have another radio that I tested and it still does it.

subwoofers - two eclipse 88120s

box - 3.4 cubes tuned to 32 hz

amps - aq1200 and pheonix gold zx450

New build :

2 obsidian audio 15s

same amp

6.1 cubic foot box tuned to 32 hz in a civic hatch

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  • 3 weeks later...

So both heads do it? Speaker problem definatly. Probably a blown speaker or a torn speaker.

2003 f150, 2 ab hd 15 on brutus 2400.1, kinetik batt, big 3, knu wire, image dynamics cxs 6.5 with ppi tweets, pioneer 1din and clarion eq.

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