Mama-mia this VK-55SE is nice. Still not completely broken in, but as I said elsewhere, I was fearful of trying a tube amp and now I wish I'd done it earlier.. As a newbie I like the fact that there's no biasing to do.
I'd never really heard holographic like sound 'til now and there is more 'air' and a greater sense of 'space' between instruments. The mids are more natural sounding and I don't notice any lack of slam compared to the VK-220 or an Ayre amp I had.
After another 100 hours I'm going to replace the (2) stock 6922 tubes- haven't yet removed the cover but imagine they're Sovteks. Also, as the amp only has (2) 6H30's I'm thinking of trying a couple of 6h30-DR tubes.
Art, thanks for your thoughts on the 3i-x and 32se. I still would be very interested in hearing the 32 series, but in no hurry. Another pleasant surprise is how quiet the BAT tube combo is. I'm really liking this.