unsound
Another Class D that struggles with lower impedances?
Yeah, I know the specific technical arguments for higher impedance speakers, but when it comes to the sonic gestalt, I seem to lean towards those loudspeakers that have lower impedances. Wake me up when there are Class D amps that handle my preferred speakers as well as the better traditional ss amps do. I’m truly hopeful that such Class D amps can be offered at a reasonable cost.
Totally correct Class-D do not like low impedances (yet) that most of the real hiend speakers have.
Also the switching frequency still has to be 4 x higher so it’s filter remnants and phase shift are "well out of the audio band" as Technics did with their impossible to get GaN SE-R1
From Absolute sounds reviewand maybe their SR-1000 integrated has also.
For its part, the SE-R1 exhibits the same bold dynamics, staggering detail, and sheer volume of musical information I’m used to getting from my reference CH-Precision A1 monoblocks. Remarkably, this is true even when the Technics amp is being driven by its analog inputs. The sound from both amps is gloriously rich, pure, and grand when the music calls for it. The biggest difference is actually in the Technics’ favor: a more realistic-sounding midrange, thanks to a dollop of sweetness.
https://www.lbtechreviews.com/test/hi-fi/technics-su-r1000
Low impedance stability and drive is the reason why I still like linear amps for my main system.
I do have Hypex NC500 mono blocks though (with no input buffer and massive linear supplies) for the easier to drive second system though. They do well there, but still have that "segregated" uppermid/highs problem all Class-D’s seem have to me (which I’m sure is the switching frequency/phase shift problem) and where that Technics should shine
Cheers George