Who's using Harbeth with tubes, what speaker model and how many watts per channel?

Sorry to chime in, because I don’t have direct experience with tubes and Harbeth...Only my Croft (hybrid) amp, which is 45 watts per channel. That has driven my (now sold) P3’s, and current C7’s. I have a fair size space...23 X 12 X 8 ft ceilings. The consensus is they like power, yet quite a few Harbeth owners are running low power. A friend runs a 22 watt SET with his 40’s, and loves it. I have not heard his setup. If I had the scratch, I’d love to try a mid/high power KT 88 or KT 150 amp. I’m in budget mode right now, so I’m thinking of the Belles Aria amp. My hope is more power will make the C7’s come alive. I’d also like to hear them with a Luxman 550 class A amp.

Update: I ended up buying the Luxman 550 AX/II to drive my Compact 7 ES gen 3's. It was pretty good, but I've since moved on. I'm thinking tubes, but as suggested above, I'm feeling there should be some power on tap. Maybe 75 watts using KT 88's, or more w/ KT 150's. I was really thinking about selling this system, but I want to give the C 7's another shot.