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In Reply to: RE: car speaker question posted by jhkain on December 20, 2016 at 11:28:55
You left too many things out to really suggest anything - is it mechanical or electrical, does just one amp drive all 6+ speakers, what are you or the stereo doing when it happens, does it get louder and if so when.
Right off the bat since it is coming from all the speakers I would suspect alternator whine from a component inside the alternator going bad, followed by a bad component in the amps power supply or both.
Follow Ups:
Thanks for the feedback and questions. The speakers buzz with any signal- engine on or off. It doesn't change with acceleration, so I'm not sure it's alternator related.
When I first heard this distortion, I thought it was a typical mechanical problem -- blown or worn speaker. It doesn't sound like a typical electrical buzz. But what made me curious was when I listened to each speaker and every one of them made the same distortion. That seemed odd to me -- that they would all be blown out the same way and their distortion sound identical. That's why I posed the question -- wondering if anyone else had run into a situation like this before.
If they buzz with the engine off it is not the alternator. You may have a grounding issue or the stereo's chassis may need to be grounded to the car if not already. Check all the connections at the stereo and at each speaker. With a multimeter check each wire from stereo to speaker to check for miswiring or without a MM try disconnecting one speaker at a time at the stereo then listening for any change.
It's not odd. After 8 years in car hi Fi including OEM repair I be seen it all. People are pretty stupid at times.
ET
"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936
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