I really, really enjoy the sound of my Musical Fidelity A1-2008. It is a class a amp, 35 wpc. Gets hot as hell in the summer here in Sin City though. Out of production but MF recently released a 2023 or 4 version of that amp...
I compare my 2008 version amp very favorably to my 25 wpc OTL Tube amp which is a very transparent amp with midrange to die for...