I just acquired a Little Dot II++ from a very nice local gentleman.
And the W1000X sings with it! Wow... the synergy is just so good here. Bass is more polite but still plentiful, treble is breathy and not strident or piercing anymore even at high volumes, and the mid is really to die for. So smooth, so sweet, so emotional.
I think W1000X just loves tubes.
Hmm sounds like an interesting pairing, may I ask how much did it cost?
I do find that tubes bring out the best in the W1000x, my Pan Am works pretty darn well with the W1000x, the mids just overflow with lush beauty :)
I also find the tubes kind of take away a bit edge in the treble, which is occasionally is pretty good.