Bandersnatch
Twit
If your experience has been that they don't sound good at bedroom levels, that is completely subjective.Id like to try these bedroom friendly 100 watt 6505 because i've never seen a 6505 or 6534 that actually sounds halfway decent with the volume not being cranked.
Any amp which shapes 99% of its tone in the preamp will sound good at bedroom levels, no matter the wattage rating. The argument is that at bedroom levels you don't need that kind of headroom so you may as well go with a smaller size amp to save yourself the space and weight, especially since a 15w, 25w or 50w amp will be more than enough to serve through bedroom, band practice and gig scenarios.
Speaking from experience, I run both a 15w and 50w amp and the 15w running through a 112 cab has been more than enough to play with a band. One thing to be aware of is that even if on paper, a 15w tube power amp and 15w solid state power amp will produce the same power output, there is a perceptible difference in volume from a tube power amp vs a solid state.