The sound has all the attributes that some seek from valves. It's warm and extremely airy, what might be might be described as 'rose tinted' sound. Certainly not in my view an accurate representation of music.
incidentally, it will be driving only the top end, comprising 16ohm HF1300 tweeters partnered with 16ohm Japanese HF horns. The bass end will be solid state powered and I'll be using passive crossovers. I may also play around with some type of supertweeter arrangement.