How good's your hearing

Marklings
Having said that the vast majority of readers of this forum would not be able to hear anything above say 12 / 13 K Hertz. So any discussion about 100k etc is snake oil.

interesting comment.

now from here...

https://www.musical-u.com/learn/percussion-frequencies-part-2-cymbals/

Typical hi-hats are usually between 300-3000 Hz dominant frequencies, and can extend up to 10-17k Hz for crispness, “air” and sparkle.

A worthy note incidentally, is that many audio engineers insist that even though one cannot conceivably hear beyond 20k, one can feel beyond 20k, which is why they are adamant about capturing ALL the recorded frequencies (especially metallic percussion). They feel that one can sense those “inaudible” frequencies, thus making the recording richer, and more open sounding.

Take the high frequency test

https://www.youtube.com/watch?v=sZHWY1KBHwc

ct0517,

Interesting! I took the test at a modest level thru my pc. I couldn't hear the 8000hz, but could clearly hear the 10,000 and 14,000hz tones. WTF.

a common Class-D complaint, as they have output filters to rid the switching noise that create phase shifts down to 3-5khz.

Probably true of a subwoofer amp, but not any that are meant to run full range.


Typical filters on a class D are 12db; if an 80KHz filter, this limits phase shift to well above the audio passband; of course dependent of the Q of the filter! Essentially though the statement quoted above is false.

Did it ever occur to you people that some people, myself included, do not like the sound of Class D?   There is no need for me to give my reasons, I just don't like it and many others feel the same way.

Did it ever occur to you people that some people, myself included, do not like the sound of Class D?

You and so many others, this happens more so than than with any of the other amplifier topology comparison, class-A v A/B, SS v Tube, SET v PP. Triode v Untralinear ect ect, these have never had such a huge difference of opinion.
  
Class-D has the most detractors, and many of these have tried a few different Class-D amps, and in the end gone back to linear amps tube or s/s, because the "music" was more important than the: size, cost, weight, heat, cost to run.

Those that don’t that can’t hear it and think it’s fine, good for them.

But they ignore the finding of all the ones that do.
https://wonderopolis.org/wp-content/uploads//2015/03/1425_3.jpg

Cheers George