• RE: New Quickie Build -- Microphonics - Coca 20:02:48 10/04/09 (2)
  In Reply to: RE: New Quickie Build -- Microphonics posted by induna on October 04, 2009 at 15:31:03

  Google Herbie's Audio Lab, and check out some of his products. ie. Tube dampers, audio feet, and a wealth of other information regarding the stuff he recomends for your problem. They can really work.
  
  Bernie.
  

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  • RE: New Quickie Build -- Microphonics - Caucasian Blackplate 23:07:32 10/04/09 (0)
    In Reply to: RE: New Quickie Build -- Microphonics posted by Coca on October 04, 2009 at 20:02:48

    With the prototype in the lab, I found setting it on a cloth deadened out any speaker inspired microphonics.
    

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  • RE: New Quickie Build -- Microphonics - induna 20:50:23 10/04/09 (0)
    In Reply to: RE: New Quickie Build -- Microphonics posted by Coca on October 04, 2009 at 20:02:48

    Thanks for the feedback. I haven't yet noticed any adverse effects on the music, which is really all that matters. I'm just glad to know it isn't something going on with my build.
    
    My amp/speaker combo isn't that sensitive. I've got an old pair of Maggie Tympani IVs that I've gotten pretty attached to. Since they really need lots of power to shine, and I'm not rich, I can't really afford to use tube power amps so I'm using a Bryston power amp. I really liked the sound of my Foreplay in this system, and since it is currently Tango Uniform, I'm going to enjoy the Quickie for a while. I have a B&K transistor pre-amp as well, but it just doesn't do it for me any more.
    
    Once I get a good feel for the how the Quickie is performing, I'll look into some mods. I'm looking forward to hearing about how other peoples' builds are turning out.
    Peter Wendell
    
    

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• RE: New Quickie Build -- Microphonics - Paul Joppa 19:04:09 10/04/09 (0)
  In Reply to: RE: New Quickie Build -- Microphonics posted by induna on October 04, 2009 at 15:31:03

  Yes, it's the tubes. The plastic chassis helps a bit. Using a less sensitive amp/speaker combo will help (see the white paper on the Bottlehead Community page, near the top).
  
  On the prototype we tried copper tape around the tube, with a pigtail to ground even. Didn't help much. I suspect that suspending the tube socket so vibrations don't reach the tube will be more useful than damping the tube envelope - but I figure, this is a really creative and experimental community, the really good ideas will come out on the forum over the next year or two.
  
  Meanwhile, don't tap the chassis plate! :^)
  

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• RE: New Quickie Build -- Microphonics - artsybrute 16:46:47 10/04/09 (0)
  In Reply to: RE: New Quickie Build -- Microphonics posted by induna on October 04, 2009 at 15:31:03

  I may be wrong, but I think I heard that 3S4's have that reputation. If so, I'll follow the discussions about taming microphonics with interest.
  
  I have microphonic tubes myself, such as 26's and the 45's that are in my main amp, and it doesn't bother me at all. But I have found that it does bother others.
  
  Sorry, I know this post didn't help at all.
  
  
  
  
  Triamp... Take a load off!
  
  

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