I used to have the 60wpc primaluna monos in a much smaller room than what I have now. I had them paired with APM-1s. That was a long time ago. I don’t know if 60 watts will be enough now, let alone 20 watts that the Raven has to offer. I’m trying to get the most tube power out of 1 unit, since I do miss the sweetness of tubes, but not go over $3k. The units suggested look good, I just don't know if they'll work for me.