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One last thud after I turn the car off

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Old 10-02-2006, 02:46 AM
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One last thud after I turn the car off

Hey all. I just finished wiring up my stereo and it sounds great. There is one tiny problem though.

Every time I turn the car off (doesn't matter if the deck was on when I killed the engine or not) I get a thud from the sub. Just wondering what might be the cause.

Thanks guys
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Old 10-02-2006, 07:52 AM
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^^^^My old amplifier used to do that with my old setup. It had to do with the amp about turn on delay. I use to get a thump or w/e you are describing on initial start up and shutdown. I think it's normal and not to worry about it too much as I never did.
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Old 10-02-2006, 08:53 AM
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or double check your ground wires....make sure they are short and clean!
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Old 10-02-2006, 12:07 PM
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most amps nowadays have circuitry to prevent the dredded thump (which can damage drivers!!)

as I recall your fix involves adding a relay to the turn on wire which will keep the amp on for a second while the deck shuts down.....

look online, I know autosound2000.com has em....
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Old 10-02-2006, 03:13 PM
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^^^HOLLLY crap i thought that was normal. I had my setup that way for over 8 months...............
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Old 10-02-2006, 03:44 PM
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Thanks Haunz.
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