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In Reply to: RE: thanks posted by digda_beat on March 10, 2017 at 02:38:17
One of the amps I tried with 63's was an OTL that did have sufficient power and it did sound very good. I used it for about a year before deciding I preferred whatever it is that transformers do for the sound.
Follow Ups:
which OTL was that?
I love my NYAL OTL's.
Upgraded Transcendent, and I thought it was great at first, used it for a year, which is a long time for me. Very clean, fast, dynamic. It is probably a personal preference that I went back to amplifiers with transformers.
I"d love to hear more details if you can manage. which transcendent was it?
I am rather interested in those amplifiers, in case my NYAL's ever die.
And which transformer amp did you prefer? From your message, I get the impression
that in fact it may be more a question of many amps rather than one amp.
In my system, which I built in the 80's. the NYAL completely blew away the Audio Research D250.
Thinking about your situation, my 2 cents is that if you like your NYAL, and you ever have a problem you can always have it repaired. The worst case scenario would be a power transformer failure, and if there isn't a replacement you could have yours rewound. Any other problems, e.g., leaky capacitor, tube socket etc., are pretty trivial repairs.
Roger Modjeski of Music Reference was first exposed to the OTL amplifier when a guy brought in a Futterman to the electronic repair shop he was working in at the time (the 60's). He was fascinated, and thus he began his study of the design. He identified the reasons for the instability in the Futterman OTL amp (as well as the amp's other problems), and designed his own OTL in which such problems were nowhere to be seen. He sold the design to Counterpoint who manufactured and marketed it as the SA-4. Anyway, in the AudioCircle Music Reference Forum (now closed, though still viewable) Roger discusses OTL design (and many other topics), which anyone interested in OTL amps should find fascinating and illuminating.
Thank-you, that was informative and interesting.
I had the predecessor to the current Beast line, I believe the model number was T8,it used EL509's for outputs. The transformer amplifier I am using now is an updated HK Citation II. I did try quite a few transformer amplifiers and still switch others in from time to time, they all have have their own sound signature. I had also read that Atma-Sphere OTL's sound very good with ESL63's. From my experience with the Transcendent OTL, I can understand why someone would prefer OTL's. I think mine was a personal preference and I also noticed that I tended to listen to the OTL at higher volumes than I do with transformer amplifiers.
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