| Ultimate single ended Triode amp [message #10558] |
Fri, 05 March 2004 08:01  |
akhilesh
Messages: 1275
Registered: May 2009
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Illuminati (3rd Degree) |
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Hi Everyone,
OK. I have a zen amp and am really happy with it. The zen se84C uses sv83 pentodes run in triode mode. Apparently these are faster than the standard single plate triodes.
I would like, at some point to build an "ultimate" SET. Some questions arise, that we can discuss:
1. What tube is best? I believe the 300B is best, thought the 2a# is supposed to be more mellow in the treble? My personal tastes run to more analytical...meaning I don;t really go for TOO much tube in the sound.
2. Is it actually worth the money to build something like this, given I already have a zen and this has mor then enough power for all my speakers? I mean, given my efficient speakers, would a 300B with good OPTs actually add anything to the sound over the se-84Cs?any thoughts are welcome.
thanx
-akhilesh
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| Re: Ultimate single ended Triode amp [message #10560 is a reply to message #10558] |
Fri, 05 March 2004 09:44  |
Phil Wilson
Messages: 23
Registered: May 2009
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Chancellor |
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I am interested in people's thoughts on this as well. I also have a Zen (the Select version, which is the same circuit and tubes as Akhilesh's). I also love my amp but I have noticed in my limited listening experience that the higher-powered tube amps (like Akhilesh's kit from S-5 Electonics and Mark Margiotta's Music Reference - both push-pulls - and even the Paramour's) seem to have more authority in the lower frequencies, even on the single driver speakers Akhilesh and I own. I haven't had enough A/B listening to identify what you lose with this (if anything) but it is something I've noticed. Since I want to build an amp sometime, I will probably do a higher-powered version when I do it (probably a kit, but someday I'd like to do one from scratch). Also, from what I read, it sounds like other than the tube you choose that the power transformers are the key upgrades to make the "ultimate" amp. What transformers do people think are the best?
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| Re: Ultimate single ended Triode amp [message #10563 is a reply to message #10558] |
Fri, 05 March 2004 15:28 |
Seeker
Messages: 48
Registered: May 2009
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Baron |
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Hey Akhilesh, except for Welborne Labs 300B amps, all the ones I've heard have that euphonic tube sound that you mentioned you don't care for. If I wanted to make a change just to make a change, I would get a pair of Ron's newer DRD 300B amps without the rectifier tube. Personally, I prefer the 2A3 tube. What speakers are you using?
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| Re: Ultimate single ended Triode amp [message #10657 is a reply to message #10566] |
Wed, 04 August 2004 14:04 |
Steve
Messages: 83
Registered: May 2009
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Viscount |
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Hi Guys,
Jack G. has some comments from years of working with 300b SET amps. For whatever it is worth. http://www.audioannex.com/showthreaded.php?Cat=&Board=tube&Number=10691&page=0&view=collapsed&sb=5&o=0 Take care.
Steve
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