Regarding 'compact', the Cayin CS 55A has inbuilt phono and USB inputs, half size width and puts out 22 Watts in Triode (40 Watts in ultra linear). So lower your box count and get great amp for less than $3000.
Compact ~20WPC Tube Amp
I should say 20WPC or more....
I’ve been trying to use a 8WPC 300B SET (Sun Audio) with some vintage bass reflex studio monitors from the 70s (96dB) and it’s clear that I need a bit more power. Everything sounds really awesome but the highs will distort at anything beyond low-medium volume which has been fine but I want to play a little louder sometimes!
Space is limited so I need a stereo amp or maybe small monos are possible.