In Reply to: 91A derivative - question to Paul Joppa posted by xcortes on January 7, 2015 at 04:55:41:
about using grid chokes.... then it gets hijacked into theoretical PS opinions.... first of all, this design originated back in 1993 by Joe Roberts and Paul Joppa was kind enough to rework it into a parafeed design.... could the amp be improved ?.... what amp can't ?....
these discussions constantly seem to end up revolving around a serious amp design that is so full of the latest and greatest stuff, but no schematic, test results or updated pictures are ever provided.... so far only one person has popped up with one of those amps and he got dissed as the design techniques have improved so much lately he has an out dated amp.... LOL.... its past time to say put up or stfu....
plus there is constant criticism about what people actually hear with other amps that do not follow these "modern" design rules.... music is "too slow" or "out of time" or other nonsense....
no doubt the amp is a huge piece of the sound puzzle.... my source is a Core Mac Mini to a Schiit Gungnir to speaker system with Onken 360L GPA 515-8LF bass, Oris 200 with AER MD3 mid and Fostex 900T highs.... not to mention all the cables and the XO construction that's there.... until you can match that don't even attempt to tell me what I hear....
please don't get me wrong.... I could care less what the "opinions" are of what I build, listen to or am perceived to hear.... my thought is some people could improve what that hear just by getting the wax out of their ear canals.... so what... the point is until we start to see the entire picture of whats being compared to what in reality then its all subjective.... and that's pretty much all it will ever be as there are too many different parameters that each of us have....
this is a great forum.... I learn a lot and am grateful to people for sharing their knowledge.... but the "my way is the only right way" is counter-productive....
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Follow Ups
- it was a simple question - awsjr 01/10/1504:59:04 01/10/15 (12)
- Like, +1 and nt - Bas Horneman 00:39:42 01/15/15 (0)
- old joke - Paul Joppa 11:00:28 01/13/15 (1)
- RE: old joke - Garg0yle 11:23:04 01/13/15 (0)
- +1, with caveats. - 91derlust 16:02:33 01/10/15 (4)
- RE: +1, with caveats. - cpotl 05:23:29 01/11/15 (1)
- Yeah, it can get a little weird in the asylum. nt. - 91derlust 12:14:03 01/11/15 (0)
- RE: I apologize - awsjr 03:36:26 01/11/15 (1)
- +1 without caveats. - 91derlust 12:11:00 01/11/15 (0)
- Sponsoring a sub forum would be a start - GEO 15:18:14 01/10/15 (2)
- DIYaudio has a power supply forum - kyle 19:31:37 01/10/15 (1)
- RE: DIYaudio has a power supply forum - GEO 07:20:57 01/11/15 (0)
- +1.... - Ivan303 12:12:00 01/10/15 (0)