Subwoofer pops when I turn on/off from deck - diyAudio
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Old 11th June 2004, 06:26 PM   #1
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Angry Subwoofer pops when I turn on/off from deck

Hi, when I turn my sub on/off from the deck I hear a loud popping sound coming from the sub. In addition to this, if I go from CD mode to radio mode I also hear this thumping sound. The same sound takes place when I change radio stations. Please help!!!
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Old 11th June 2004, 06:50 PM   #2
pape is offline pape  United States
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I am assuming the subwoofer is on it's own amp?
It usually has to do with amps.
Is there a remote wire to turn it on, or does it use speaker level signal to turn it on?
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Old 11th June 2004, 08:07 PM   #3
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pape:

Yes the sub does have its own amp and there is a remote wire to turn it on.
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Old 11th June 2004, 08:20 PM   #4
pape is offline pape  United States
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If you disconnect the RCA's to the sub amp do you still get the pop when turning the radio Off/On.
If you have another amp (for front speakers), try disconnecting that and see if the pop goes away.

Although the fact that it does it when switching to radio and changing stations leads me to believe it is the HeadUnit.
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Old 11th June 2004, 09:03 PM   #5
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Check all grounds in system, including the impedence of the head-unit ground.

If all is ok, It sounds like the muting transistors on the heads output are bad.

Good luck.

KevinLee
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Old 11th June 2004, 10:11 PM   #6
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Thanks for all the help; I will look into replacing the head unit to see if that resolves the issue!!
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Old 17th June 2004, 10:50 PM   #7
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I`ve had the same problem, in my case it was the ground from the amp that wasn`t connected good enough, after real though sanding the paint of the car and reconnecting the ground the problem was gone, ever since i`ve had 5 different cars and never had the problem again
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Old 12th July 2004, 03:30 PM   #8
Jackal is offline Jackal  Canada
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bad ground is almost always does this
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Old 15th July 2004, 01:16 PM   #9
tuneman is offline tuneman  Australia
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it can be a common problem with certain brands of amps! just the design of the amp
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Old 19th July 2004, 07:09 PM   #10
DREW028 is offline DREW028  United States
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its your remote turn on....is it connectde to the radios remote wire or to the acc wire?
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