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In Reply to: RE: If they work properly they don't tick. posted by morricab on May 21, 2025 at 00:41:22:
I'm familiar with the distortion spectra research, of course. I don't doubt that it helps to have even spectra present, but I do not think this is important to SET sound, or at least not the SE sound characteristics I find appealing, because we're talking about very low-level signals, where all THD is miniscule (even with a SET).
Rather, I think monatomic distortion - decreasing linearly with level - is relevant. But, then, I'm pretty sure the switching amps do this too.
I think the Atma-Sphere switching amps sound extremely good. I've heard them once, in what I thought was one of the very best rooms at Axpona 2025, with Popuri electrostats.
Then again I think my Purifi amp sounds very good as well.
After more listening, while I find the SET sound more *enjoyable,* I can't be certain it's more *accurate.*
I am leaning more towards the transformer insulation effect being responsible for this SET sound - but, of course, that should then work for PP TX-coupled tube amps as well, and it does, pretty much, but not with the same level of low-level naturalness, in all of my experience. I've always attributed that difference to crossover distortion.
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Follow Ups
- RE: If they work properly they don't tick. - PaulF70 05/21/2513:08:25 05/21/25 (4)
- I doubt that is due to crossover distortion - Ralph 13:05:45 05/22/25 (0)
- RE: If they work properly they don't tick. - morricab 08:25:12 05/22/25 (2)
- RE: If they work properly they don't tick. - PaulF70 09:48:39 05/28/25 (0)
- Yes, its not transformer insulation! - Ralph 13:02:59 05/22/25 (0)
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