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About Martin

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    Southern CA
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    Early music, J.S. Bach, vintage hi-fi.

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  1. ANOTHER KLH Model Five rebuild

    Very nice work! FYI, I clean my KLH & AR grill cloth with a smelly, ammonia-based carpet-cleaner foam in a spray can which works very well and doesn't damage the cloth.
  2. ANOTHER KLH Model Five rebuild

    The sort-of clearcoat KLH used can be sanded off to reveal really nice-grained veneer underneath, but beware, the KLH veneers seem thinner & cheaper than the ones used by AR so it's very easy to go too deep, especially with 100-grit.
  3. Dynaco A-50 cabinet salvage

    Thanks for the carpet suggestion, Vern; great idea. I have plenty of small carpet samples that will now be put to good use.
  4. I bought Dynaco A25s instead.
  5. Opinions on Fisher vs Scott preamps for A25s?

    I was mildly disappointed by my carefully restored 400C when used with my Stereo-70. I am not disappointed with any of my three PAS3 preamps however. I use A40XL or A50s in that system so it's vaguely similar to yours.
  6. Dynaco A-50 cabinet salvage

    Thanks, Vern. I've been thinking of mounting my A50s on the wall. I still have the little felt pads that were originally supplied by Dynaco for this purpose, but suspect they won't provide enough isolation.
  7. I spent a lot of my final year of high school in the NYC AR music room. The guy who ran it on weekdays was always very accommodating and was always happy (or at least, willing) to play the LPs I brought and to answer questions. These visits had the desired effect & resulted in the eventual purchase of an AR receiver & XA turntable.
  8. Dynacos stuffing replacement!

    nfafan is exactly right!
  9. Tom, your post brings back a lot of great memories. Here's one that helps make your point: In early 1970, my father asked me to research & recommend speakers to him. Over several weeks, I carefully compared AR2aX, KLH 6, KLH 5, Dyna A25 and a few others at various stores, mostly on 45th St in Manhattan, which was at that time, stereo row. Early in the process, after a few A - B comparisons at one well-known store, the 2aX was my least favorite choice. On the way home, I visited the nearby AR Listening Room where I was so favorably impressed by the 2aX that I thought the Listening Room was somehow rigged. Eventually, after a few more listening trips, I realized that the store was rigged and that the AR listening room simply showed the speakers off accurately and in the best possible light.
  10. Driving these AR3a speakers

    It's not wrong, it's right.
  11. dynaco speakers

    These are not Dynaco speakers.
  12. Driving these AR3a speakers

    Why not connect two AR3as in series (rather than in parallel) on each channel? It seems like this would solve several problems simultaneously, particularly if you usually like to use both pairs together.
  13. KLH 5 fatal design flaw

    As the happy owner of two pairs of Fives, each pair used in different rooms, I can report many hours of listening to them with absolutely no awareness of any flaws, no fatigue and in fact, have no criticisms of any kind. I'd say Henry got it just right, with two sweetly singing midrange drivers, which to me, sound better than the 2aX midrange and just as good as the AR 5 midrange. To each his own.
  14. Another KLH Five recap

    I am in full agreement with Analogman: hot glue has never harmed any of the dozens of film caps used in any of my past restorations. It's a lot cleaner than hot tar, too.
  15. Very interesting topic. I will respectfully disagree with the idea that the subjective bass capability of a 10" 2aX or 5 is closer to that of the 8" 4X than to the 3a and feel that the exact opposite is true. The 3a certainly has extreme low-bass authority possessed by few others, but the 2aX & 5 come pretty close and are able to accurately reproduce most of what's present, on 1970s vinyl, anyway. The 4x does an admirable job for such a small package, but its limits are too easily reached whereas In practical usage, with music rather than with test tones, the limits of the 2aX or 5 are not so easily reached. Room acoustics & speaker placement seem to be at least as important as 12" vs. 10", if not more so.