Loud slamming pop sound when I turn off my my amp, should I be worried?

Discussion in 'Amps & Cabs' started by NoiseNinja, Jan 13, 2020 at 8:22 AM.

  1. NoiseNinja

    NoiseNinja Member

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    I just got my new used amp home the other day, and now it started giving off a loud slamming pop sound, almost like a firecracker, when I turn it off on the on/off switch on the amp.

    It is quite loud even if I haven't turned the amp up very loud.

    It didn't do this when I first got it home, just started doing it today.

    The amp seems to otherwise work flawlessly, just worried that it might be a sign of a developing issue or that it will damage the speaker in the long run.

    What could cause this issue, and should I be worried?
     
    Last edited: Jan 13, 2020 at 8:29 AM
  2. donepearce

    donepearce Well-Known Member

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    What is the amp? If it has just started doing it then yes, be worried.
     
  3. NoiseNinja

    NoiseNinja Member

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    it's and old, but by the look of it, really really well taken care of, Peavey Solo Special 112, 160W SS combo amp.
     
  4. donepearce

    donepearce Well-Known Member

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    I guessed it would be solid state. I'm suspecting a failing electrolytic cap. It would be a good idea to get an amp tech to have a look. Electrolytic caps have a definite finite lifetime, which will be shortened if they get hot.
     
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  5. living room rocker

    living room rocker Active Member

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    Any change in other settings besides volume since you brought it home.....increased gain or other effects that have substantially raised the noise floor? My Katana makes no noise whatsoever, but the Fender Champion has always, since new, made a loud pop when switching off.
     
  6. pancake81

    pancake81 Well-Known Member

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    My amp is a peavey delta blues, 30 W tube amp. I bought it used and I have had it 21 years. It has done it since the day I brought it home. No issues other than the “pop” when you hit the kill switch

     
  7. donepearce

    donepearce Well-Known Member

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    A pop from the kill switch is absolutely fine for a valve amp. That is doing what it should.
     
  8. NoiseNinja

    NoiseNinja Member

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    Well, last time I played on it it didn't do it, but since it has done it it might still be a sign that the an electrolytic capasitor is about to give up, or it might just be something random.

    I'll have to be aware of if it starts to do it more consistently in the future again I guess.
     
  9. Spiral

    Spiral Member

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    Every amp I've ever owned does that. It's normal, unless the sound your hearing is not what I hear.

    A pop followed by a little sizzle sound, right? A zilch sound sometimes? Dissipating wattage getting shut off.
     
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  10. pancake81

    pancake81 Well-Known Member

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    Yup, that’s what I get.

     
  11. straydogger69

    straydogger69 New Member

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    A friend of mine has an older Peavey Classic 30 that he bought used. It's done that since the day he bought it. Now, the dirty channel quit working completely. Is there a connection? I don't know but if it was mine I would have had someone check it out a long time ago. The clean channel works fine. If it now needs a cap job I'm not sure it would be worth the money.
     

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