How good's your hearing


Bet you can' beat my grandma's hearing, even she says "Class-D sucks".
http://krisdedecker.typepad.com/photos/uncategorized/2008/06/05/bat_phones.jpg

Cheers George
128x128georgehifi
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
Class-D has the most detractors


BS.  References please.  Tube amps often reek.  Class A-B too.  Way more bad ones out there than Class D I suspect.