@robshaw I have not heard any Pass Labs or Coda speakers. I do remember a long string of posts on the 5.5 by Terry London on Agon last year just before his review came out. He was smitten with it. The post had the title petite in it if I remember correctly- maybe you want to read that to get some idea. You could even message him.
I do have another amp, not class A that I really like. Class AB, Gato Audio Amp 150 AE. Love it. Another amp which I have loved (and owned) is Hegel H390.
Both are power houses (or horses?).