I used to use mid-class speakers like JBL, B&O, Vienna Acoustics, Victor, Denon, YMAHA, etc.Toku, I know you have tried many Class D amplifiers, and I appreciate your reviews of these.
I would be interested to know what speakers you have.
You're on the wrong forum, by the way.
But I didn't like the characteristics of multi-unit speakers. Currently I use home made speakers using full range and coaxial type units.
The speakers that I mainly use now use multiple full-range units from the Taiwanese manufacturer TangBand. I also use units from the British brand Markaudio. Recently, I added Quad S-2 in addition to my homemade speakers.
In my case, speakers are mainly for checking the sound quality of audio equipment rather than listening to music.
Recently, however, I have become unable to hear high-pitched sounds due to my aging. Now I can't hear much above 13kHz.