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In Reply to: RE: N core posted by Davey on January 20, 2018 at 21:09:13:
You have a point. :-)
For what it's worth, and speaking personally rather than technically, I prefer "straight wire with gain" accuracy. I find that euphonic coloration becomes cloying and annoying after a while and I don't think that distortion adds something to recordings of acoustical instruments, which in real life have a gusto and purity that makes our efforts sound pathetic, and so no lack of impact!
Speaking technically, I'm really curious about this issue of dynamic distortion. Clearly we're missing something because this doesn't seem to show up on steady state measurements of the harmonic spectrum or IMD, which I find normally correlate pretty well with the way a good amplifier sounds in its linear range for reasons that anyone who has ever played with additive synthesis and noted the effect of harmonic spectrum on timbre will understand. And it doesn't seem to show up on conventional dynamic measurements, either, we've known how to deal with TIM for years. The main candidates I can think of are feedback loop issues, power supply impedance/sagging, and the way the amplifier/feedback loop responds to back EMF, which could explain some of the long time constant stuff I hear on piano ADSR. But the AHB2 is a complicated beast, what with its feedforward amp (if I understand correctly) and rail switching, so I can see other possibilities -- assuming I'm not imagining things!
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- RE: N core - josh358 00:39:40 01/21/18 (0)
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