A great tube pre one of the best I’ve heard, probably because they run the 6DJ8/6922 quite hard, my mate gets around a year out of them, he says his favorites in order are RCA, Siemen, Telfunken, as he says they are the cleanest sounding to him, I say, that’s because they’re closer to a solid state sound to him, and he hates that.
The Vandy’s have a rep for "sometimes" sounding a touch laid back, Parasound Halo A21+ would be great I think
Cheers George