Amp Issues?

Discussion in 'Home Cinema Buying & Building' started by JaceyBoy, Aug 28, 2013.

  1. JaceyBoy

    JaceyBoy
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    Guys, I have an Onkyo amp powering 4 x 8 OHM speakers in the kitchen ceiling and it is placed on its side in a cupboard as there is not enough space to lay it flat.

    Now I am getting bad smells (hot) and also this is the second amp as the first went bad, also the audio has been effected, hard to explain but like a muffled sound, I changed ports from Aux to Phono and its fine again but still running hot, would you put this down to the amp being on its side?

    Cheers for advise....
     
  2. Gaspode_TWD

    Gaspode_TWD
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    All amps generate some heat so ventilation around them is very important. Does the cupboard the amp is in allow warmed air to escape and cooler air to enter?
     
  3. JaceyBoy

    JaceyBoy
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    I wouldn't say a massive area of cooling, it's in a fairly slim cupboard, but when on the door is always left open for circulation
     
  4. Joe Fernand

    Joe Fernand
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    'would you put this down to the amp being on its side?' - what does the Onkyo Manual say about installing the unit?

    How do you have he speakers wired to the Amp?

    How loud are you running the system?

    What is the temp within the cupboard with the Amp running?

    Joe
     
  5. JaceyBoy

    JaceyBoy
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    This will give a better idea for you....I cant tell what temps are in the cupboard, but it does smell hot when its on, we don't have it mega loud, normally max middle on the volume

    [​IMG]
    [​IMG]
     
  6. Joe Fernand

    Joe Fernand
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    Can’t make out Amp model number from those photos.

    How are the speakers wired to the Amp? You say 4-ceiling speakers in the kitchen – are they wired as two pairs to separate binding post on the Amp?

    If it smells/feels hot then you are not getting enough hot air out and cold air in to the section of the cabinet housing the Amp – having the amp at a jaunty angle is probably not helping either!

    Joe
     
  7. JaceyBoy

    JaceyBoy
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    I put the amp at that angle to try and help with air flow, as it was on its side normally, as far as I know its wired normally as you say, the model number of the amp is A9155
     
  8. Joe Fernand

    Joe Fernand
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    ‘as far as I know its wired normally’ – you need to confirm it is wired as per Pg10 of the User Manual.

    If you have enough cable to extend the Amp try temporarily running it outside of the cupboard.

    Try running with just Speaker set A or B not both and see if that makes a difference.

    Joe
     
  9. JaceyBoy

    JaceyBoy
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    Its better since we changed the output channels, but im worried it will fry the rest of them now, maybe that's what has happened in the past, also I didn't know if this amp is "beefy" enough to run the speakers?
     

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