Will recaping my Pioneer SA-9500 II Amplifier improve the sound quality?

Discussion in 'Solid State' started by G7Trader, Jan 1, 2018.

  1. G7Trader

    G7Trader Active Member

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    235
    Will the sound quality be improved?
     

     

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  2. Robisme

    Robisme Sansui Enthusiast Subscriber

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    It may. It may not. It's a very nice amp. Maybe you need different speakers?

    Rob
     
  3. w1jim

    w1jim I can fix it but good... Subscriber

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    I did a test a few years back where I compared (with a remote switcher) a fully recapped SX-850 and a stock one.
    I did this at one of our audio get togethers.
    Most people couldn’t tell the difference - I could hear a slight improvement at the high frequencies.
    Many of us (myself included) are a bit obsessed with recapping. On a generally well functioning amp you may hear a slight improvement by recapping.
    On a faulty amp you should correct the actual problem before recapping.
    Also recapping can be seen as preventative maintenance.
     
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  4. KingBubba

    KingBubba "Too Much Stuff"

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    I recapped mine and could hear a difference, though, at that point, my filter caps had been draining for a while and I did not know it.
     
  5. rkgren1

    rkgren1 Well-Known Member

    Messages:
    959
    Location:
    Yorktown, VA
    G7Trader,
    No one can credibly answer that question, because no one knows the condition of your amp.

    Last year I recapped an SX-950 and got a huge improvement.
    I refurbished an SX-1000TW and got a more subtle improvement.
    But I cannot generalize anything from either statement.

    You can credibly expect that, if you refurbish your amp by replacing age-sensitive components (E-caps, transistors, etc.), your amp will be close to as-new condition.

    Will that be an improvement? :dunno:
     
  6. teal'c

    teal'c It's all moo

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    Oh, 100% maybe.
     

     

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  7. Taylor Player

    Taylor Player AK Subscriber Subscriber

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    I was there for this test and was one of those that could barely make out any improvement. Frankly, I was surprised and have to say, the opportunity to A/B identical stock vs. recapped units was a rare treat and a real eye opener.
     

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