Subwoofer alternator whine!!!

Discussion in 'OT Technology' started by OOTSABryan, Jul 20, 2002.

  1. OOTSABryan

    OOTSABryan New Member

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    Alright I just got a new head unit (Alpine 7894) and I have one amp for my speakers and one amp for my subwoofer. I also have a kenwood graphic eq hooked up. Now for some reason I get alternator whine really bad from my subwoofer. I mean the volume is all the way down and I am just idling and its just throwing out a constant like 80 hz bass signal. But there is NO alternator whine from the other speakers. I hooked it all up exactly the way that it was before with my other deck and I had no problem with this then. I can't figure it out and its hot and I'm sweating like a mofo and I'm about to throw it against the wall. Please help.

    Hey its my first post too by the way!
     
  2. OOTSABryan

    OOTSABryan New Member

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    But how can just swapping headunits cause a ground loop?
     
  3. NisAznMonk

    NisAznMonk New Member

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    How would I go about this? I don't really understand what "ground loop" is.
     
  4. NisAznMonk

    NisAznMonk New Member

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    how could i prevent/fix this problem?
     
  5. LOUDSYSTEM

    LOUDSYSTEM Guest

    run a cable from your head units frame to the amp frame or amps ground input. make sure your amp is well grounded.. and also make another ground for your deck try using the wire off your cig light to see if that fixes the problem if it does run a small wire from the deck to some metal somewhere near by
     

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