High Efficiency Speaker Asylum

Posted by mhardy6647 (A) on April 16, 2007 at 17:44:27

In Reply to: cornwalls versus audio nirvana / fostex posted by steven13 on April 16, 2007 at 16:18:00:

hmmm... that doesn't sound right to me. They're pretty lively :-)
What vintage are yours? P'haps new XO capacitors are in order? Are all the compression drivers working?

What are you using for sources?

all the best,
mrh

• Re: Cornies? Dark?? - steven13 08:24:48 04/17/07 (1)
  In Reply to: Cornies? Dark?? posted by mhardy6647 on April 16, 2007 at 17:44:27:

  Correction, I have 1976 Cornwalls (I just learned). I'm planning on buying Bob Crites drop in replacements for the tweeters and crossover (mine is the standard Type B), then I might tinker around with the old ones to see what can be done.

  I listen to vinyl on a Thorens 160/SME3009mk2/Shure V15 mkV amplified by the phono section of an MFA Magus outfitted with TungSol 5751s. The tuner puts out a much fuller sound than the phono... it would be nice for both to be on more equal footing. I would describe the phono as thin and lean. By comparison, an all vintage set up using a upgraded Scott 222a integrated produced a huge sound stage with great depth and calrity, but would get muddled up in more complex passages and didn't sound as tonally accurate across the board as the current set up. It would be nice to recapture the sound stage of the Scott to some extent... the music does sound quite nice right now.

  I would like to tube roll in the phono, but I can't see that making a huge difference.

  I've got one of those AT 440 carts on order to improve the sound stage without giving up too much tracking and tonality, but I'm not giving up on the Shure cart either, it's a benchmark after all.

  Any further ideas?
  
  

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  • on caulking the squawker and more - mhardy6647 10:56:39 04/17/07 (0)
    In Reply to: Re: Cornies? Dark?? posted by steven13 on April 17, 2007 at 08:24:48:

    "Caulking the squwaker"... great turn of phrase!

    I'd opine that damping that big, ringy MR horn couldn't hurt; as you see I did mine... the Klipscheads noted that I went overboard, though, FWIW.

    As to your lean phono... I cannot comment on your preamp, since I've not heard it. "Thin and lean" suggests to me that you might like a Grado better than the Shure... or an MC.

    
    all the best,
    mrh
    
    

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• Re: Cornies? Dark?? - steven13 19:02:41 04/16/07 (0)
  In Reply to: Cornies? Dark?? posted by mhardy6647 on April 16, 2007 at 17:44:27:

  Mine are original Cornwalls, I think from an 80s vintage, but I'm not sure. CD-BR (decorator birch vaneer) and all I've got are the seriel number to reference their age: 8P926 & 8P927.

  Dark, but clear as a bell. I don't think they sound "bad" at all.

  What's are the recommended replacements for the capacitors? Better yet, what about rebuilt cross-overs, like those by Dean G?

  Bob Crites replaced the diaphragm in one of my tweeters, which came to me blown. Maybe the tweeters dont' match each other any more? I'm not sure how big an impact that could be making in the imaging department, but I guess it's important.

  Also, I haven't caulked the squawker yet. Recommended?

  -Steven
  
  
  

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• Agree, replace the caps first. - djk 18:35:30 04/16/07 (1)
  In Reply to: Cornies? Dark?? posted by mhardy6647 on April 16, 2007 at 17:44:27:

  They need to be replaced even if they are newer.
  
  

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  • If after Xover is refreshed... - mpathus 20:01:20 04/16/07 (0)
    In Reply to: Agree, replace the caps first. posted by djk on April 16, 2007 at 18:35:30:

    ...and still sounds dark (or closed in): one might experiment by changing taps on the K-55v's choke ala Heresy mod, using jumpers.
    Used to attenuate some Heresy "screetch" for some, one may tailor to taste the mid's edge/presence.
    Much can be done with a crossover.
    
    

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