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In Reply to: RE: KISS rules in audio... posted by drlowmu on July 03, 2015 at 16:59:48
Thanks Jeff
A #45 SE amp could be my next project, ones I get the speakers up and running. My 300B amp is quite close to Jack Ellianos DRD design: http://www.electra-print.com/300bdrd.php But with a 6C45 driver tube, nickelcore parafeed OPTīs, and separate PSUīs for each chanel. I think this is a pritty neat design even though a #45 is a better sounding tube.
Follow Ups:
Well, you and I have different ideas and experiences on what is a "pretty good" design. Its gotta be WAY better than that Pix. You only THINK you have it covered.
There is MUCH more to building an amp than copying a schematic, and passing a signal, to get an ideal result.
Amps are the biggest weakest link in high efficiency audio. I have been building DHTs ( 2A3s ) Pix, since 1982, and I know they are the weak link.
Jeff Medwin
I hanve not copy anything...
I just wanted to give you an idea in general terms of what type of amp-toplohy I was using.
Jeff.
I must say I get a bit amazed hearing you can tell my amp is no good just by knowing what general type of topolgy it has. Me I would not be able to tell without listening (or at least have a propper schematic) to tell.
But again, I have only 45 years in this hobby so I must have a lot to learn..
Still, my qestion was about the best way to set up my speaker x-over, not evaluating the quality of my amp (or marketing other amps). So I prefer we stay bu that.
Pix," I must say I get a bit amazed hearing you can tell my amp is no good just by knowing what general type of topolgy it has. "
Not amazing at all. You may have 45 years, but Pix, I grew up listening to a pair of ALTEC 604 Bs sixty two years ago - in my parent's Recreation Room. I built my first DIY DHT 2A3 amp in 1982.
I came to the conclusion by now, ( from my direct listening experience on high efficiency speakers ), no one will do better than a PROPERLY made two stage DC SE amp, typically with a mu of 100 driver tube, connected to the grid of either a Type 45 or a 2A3. Others, may have to learn that, assuming they knew how to build the amp really well. Often that is a large assumption, from what I see.
IMHO, amps, not speakers, are the weak link in audio, " the turkeys " and in high efficiency audio particularly. YMMV, this is perfectly OK with me !! Have fun.
Jeff Medwin
Edits: 07/10/15 07/10/15
listen to what your needs are and provide relevant advice. He is very much into his thing... but it may not be your thing.You are into some cool stuff. Experiment. Have fun. Enjoy!
Regards,
91.
"Confusion of goals and perfection of means seems to characterise our age." Albert Einstein
Edits: 07/06/15 07/06/15
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