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Subwoofers
Whats wrong with my sub?
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<blockquote data-quote="fossil99ca" data-source="post: 450084" data-attributes="member: 554480"><p>I’ll try to respond to this as no one else has. If the sub is flexing all the way out it sounds like either the amp is clipping or there is a short circuit somewhere in the amp that is putting out full or a lot of current to the sub for a second or two. Check your equipment for visible damage/heat marks. Does your amp get very hot.? Are you components getting old?</p><p></p><p>Or it could be voice coil damage, loose connections (wear) in the sub. Possibly it’s shorting in the coil, changing the resistance of the coil, say from a 4 ohm coil down to 1 ohm coil or less. This makes the amp put out much more power in that second or two causing it to over-drive the sub.</p><p></p><p>Either way it is not very good for either component. You can check the voice coil with an ohm meter. I do not know how to test the amp without fancy equipment.</p><p></p><p>Could also be a bad signal from your heat unit. If it is sending crap to the amp, the amp will just muliply the crap to the sub.</p><p></p><p>May be you have a (good) buddy that could lend you some old equipment to test it with. If you change the sub and the problem goes away, than you know it is the sub for example. Or use a different pre-out from your head unit.</p><p></p><p>my 2 cents</p></blockquote><p></p>
[QUOTE="fossil99ca, post: 450084, member: 554480"] I’ll try to respond to this as no one else has. If the sub is flexing all the way out it sounds like either the amp is clipping or there is a short circuit somewhere in the amp that is putting out full or a lot of current to the sub for a second or two. Check your equipment for visible damage/heat marks. Does your amp get very hot.? Are you components getting old? Or it could be voice coil damage, loose connections (wear) in the sub. Possibly it’s shorting in the coil, changing the resistance of the coil, say from a 4 ohm coil down to 1 ohm coil or less. This makes the amp put out much more power in that second or two causing it to over-drive the sub. Either way it is not very good for either component. You can check the voice coil with an ohm meter. I do not know how to test the amp without fancy equipment. Could also be a bad signal from your heat unit. If it is sending crap to the amp, the amp will just muliply the crap to the sub. May be you have a (good) buddy that could lend you some old equipment to test it with. If you change the sub and the problem goes away, than you know it is the sub for example. Or use a different pre-out from your head unit. my 2 cents [/QUOTE]
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Whats wrong with my sub?
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