In Reply to: "Until you compare them to equally good no feedback circuits I can imagine you don't hear the consequences.." posted by Lew on February 23, 2015 at 08:07:14:
LewIMHO original older J.Futterman OTL designs which uses triodes but not pentodes in asymetrical SEPP(Single Ended Push Pull) OPS can probably have almost that SE amp sound signature , without of any of my doubt that Futterman amps are really PP amps and also regardless of use of significant amount of GNFB .
But must say that only some THD analyzer probe can reveal real output THD signature , so if THD spectrum consist from mainly second harmonic followed with much lower level of third harmonic and even almost non existand traces of higher order harmonics only than I can say that Futterman amps perfectly mimics SE amplifiers sound .Best Regards !
Edits: 02/23/15
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Follow Ups
- RE: "Until you compare them to equally good no feedback circuits I can imagine you don't hear the consequences.." - Banat 11:17:30 02/23/15 (5)
- Triode outputs on a Futterman... - Lew 14:45:18 02/23/15 (4)
- RE: Triode outputs on a Futterman... - Banat 15:43:32 02/23/15 (3)
- RE: Triode outputs on a Futterman... - Lew 10:29:52 02/24/15 (2)
- RE: Triode outputs on a Futterman... - Ralph 08:50:47 02/25/15 (0)
- RE: Triode outputs on a Futterman... - Banat 15:54:52 02/24/15 (0)