It’s always been a great combo a good SS amp and vacuum tube preamp
and Linear Tube Audio make a exceptional one .
I know build quality better then most having 4 decades in Audio
originally designed by The well known David Berning ,then upgraded
better still, very well reviewed and the Vacuum tube preamp uses at least 2 different types of tubes , and inside no cheap alps volume pot
but very high quality resistive ladder ,to relays , check them out and video on build.