car speaker 'hissing' (interference?)

Discussion in 'OT Technology' started by noogles, Jul 22, 2004.

  1. noogles

    noogles OT Supporter

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    one of the speakers in my 98 Range Rover has developed a hiss. with the exception of a Clarion DVD player (VRX935VD) which was installed a few months back everything is stock. a local audio shop told me the speakers have individual amps and the hissing/interference is cos one of the amps has gone 'bad'. it was suggested that i disconnect all individual amps and get one single unit to power all the 11 speakers. any thoughts, ideas or suggestions are welcome. thanks.
     
  2. 04

    04 Guest

    It's possible that one of the amps has gone bad. However, if you increase the gain to very high levels, that could also make hiss more 'apparant'. What kind of hiss noise is it? And how loud is it exactly?

    IMO 11 speakers are largey unecessary anyways, and I personally would get rid of a few in favor for a component set and a subwoofer.
     
  3. Old School Pervert

    Old School Pervert New Member

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    It could be that you developed some engine noise. The hissing is coming out of the speakers, correct? What I would do is try installing a ground loop isolator. This helps with engine noise most of the time. If not, then I would definitly go with 04's suggestion, try lowering the gains on the amps. Good luck.
     
  4. tryfuhl

    tryfuhl New Member

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  5. ATlasIAm

    ATlasIAm peace will never exist in the world...but it's a n

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    is the gain turned up? That usually does it. Sometimes some amps just make speakers hiss, i've seen the problem with some of the cheaper denon receivers doing it. Don't know why, people upgrade to the 3000 series and it goes away after trying multiple thousand series. I've seen this in two instances in the same apartment complex. Makes little sense to me!
     
  6. XR250rdr

    XR250rdr OT Supporter

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    I think the installer was referring to factory amps. Hence no input sensitivity adjustment.

    I'd do like 04 said...a nice comp set and a good amp to power them.
     
  7. Bob from Marketing

    Bob from Marketing OT Supporter

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    Do you hear the hiss only when the engine is running?
    If that is the only time then it is most likely a ground issue
     
  8. 04

    04 Guest

    Why wouldnt it be a ground issue if the engine wasnt running?
     
  9. tryfuhl

    tryfuhl New Member

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    Nope... maybe you're thinking of alternator whine instead?
     

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