Dave
Just so you have a reference for my amp experience to put my Pathos Classic One recommendation in perspective.
Owned &/or have sampled extensively in my room or very familiar room:
Early VTL Compact 100W monos
Levinson No. 23, 1600WRMS @ 1-Ohm (impressive)
Sweet sweet sweet 8W custom SET 300B (best treble ever, absolutely haunting...)
Very sweet British 25W dual EL34 (current amp)
New Son of Ampzilla
Ampzilla monos
Original Classe 25W pure class A stereo (modern rendition of the original legendary Levinson that helped birth the high-end)
Above amps bridged 100W monos
Custom John Curl inventions
Custom chip based analog 25W stereo
Above amps 60W monos
$10k Plinius 250W Mk II
Bedini 25W
Bedini 45W
Moscode 300
John Iverson Eagle stereo
Eagle 400W monos
etc
etc
I only heard the $2300 Classic One in a store. The room's L/W dimensions approaced square, causing resonance from the lower mid down. There were several good treatments that made the range above that sound good.
Source was the very nice Ayre CD/SACD. Speakers were Monitor Audio, not the best in the world but pretty darn seamless & good musicality. The Pathos amp has the musicality, dimensionality, palpability, texture, immediacy & illumination from within that tube lovers absolutely crave & must have. Once you've become very familiar with that type performance it's hard to go back. It appeared to have none of the negative qualities tubes are known for like thickening & rolloff at frequency extremes. It probably does not have the haunting treble quality of my buddy's custom built 8W SET 300B, but probably nothing does except that type amp. The rest of it sounded so good that I'd not miss the treble quality anyway.