I have Vandersteen 3a Signature speakers... my Preamp is a McIntosh C2200 which I view as a keeper, my power amp was dying and I was searching for something different. I took a chance on Two Schiit Tyr Monoblocks, wasn’t exactly sure how this would work... WELL... simply awesome. The bass is considerably better, the midrange is more detailed with greater depth and the overall soundstage improved tremendously... these big Schiit’s are keepers too. Definitely recommend a tube preamp like my McIntosh with the Solid State Schiit Tyr poweramps... great combination. I interfaced the C2200 to the Tyr’s via XLR. Prior to discovering the Tyr's I was leaning towards Bryston or Parasound.