My unit does not have tube output but it is passive tranformer-based one and I love it. I use Joule-Electra LA-300ME tube preamp and the combination drives me literally nut so good it is. I can't imagine anything better (except LA-450 of course)
I also used David Elrod Gold Statement PC and APL interconnects. Now, I moved to next level: Purist Audio Design which I feel more accurately represent the acoustic music and while I am professional concert pianist its still my personal opinion.
Simon