I have it paired with with a 4b ST, BP17, BCD1 and a pair of paradigm 60's. No huge changes, maybe a hair more detail and bass. Most noticeable the music seems to be a bit more free flowing, effortless, if that makes sense. This is my second BIT (Torus), the first has been in place for several years paired with a 4b SST2, BP-26, BCD1 and a pair of B&W 804's. I noticed the same changes when I added the BIT (Torus) to the 4b SST2 system. I'm using Bryston IC's and speaker cable in both systems. Someday would like to audition Bryston's speakers.