@snapsc correct.
Questions re: GaNfet technology vs other designs.
How do the newer GaNfet technology amps compare to the HYPEX NC400, HYPEX NC500, HYPEX 1200 and PURIF Audio designed amps in terms of sound quality? And also how do these GaNfet technology based amps compare to class A and class A/B amps for sound quality?
It seems several companies are offering GaNfet Amps. For example, please the Orchard Audio Starkrimson 150w gan amplifier and the Atma-sphere Class D power amplifier (and several others).
GaNfet is claimed to provide excellent sound quality. Several class D mono blocks offer great sound as various reviewers have reported. I noticed there are several GaNfet technologies power amps available but not many integrated amps. I wonder why.
Maybe the better question is GaNfet Amps really for prime time? Your comments on GaNfet Amps are requested. thanks....
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@theaudioamp I see you dropped the idea that a GaNFET amplifier by virtue of GaNFETs must have load dependent frequency response. That's good- Occam's Razor wasn't supporting that idea at all. We seem to be seeing two messages from you- that harmonic distortion is and at the same time is not audible. If you will set aside the handwaving for the time being, the ear's sensitivity to higher ordered harmonics has been known for a very long time- I refer you to the Radiotron Designer's Handbook, 3rd edition, published in the 1930s. The tonal effects of something like the 7th harmonic are easily explained in musical terms, for the obvious reason of the 7th having a very specific tonality with regard to the fundamental tone. Regarding the effects of insufficient feedback, I refer you to Norman Crowhurst, who wrote about how feedback adds distortion of its own (including IMD) back in the late 1950s. At the time, no amp existed in which sufficient feedback could be applied, so he wrote about this in the context of all amplifiers. He also explains why: non-linearities at the feedback node. You can find his work on Pete Miller's reference book website. Crowhurst's position on this topic is reinforced by that of Bruno Putzey's excellent article on the same topic. Seems to me I've referred you to that article before... Finally, the tack we've taken over the years with our OTLs seems to have worked. FWIW they sound very much like our class D, which is to say quite neutral. From your comments it appears that you did not read the article at the link I provided. |
- 51 posts total