The VSI75 only had 90 hours on it, but it was starting to sound amazing but I could already tell that it wasn't going to check all the boxes that I have come to want in my Hi Fi system. Having the Ars Sonum Filarmonia integrated tube amp in my system was a bit of a revelation for me. Its only shortfall was a lack of power (35 watts) which translated into a lack of bass and a real room filling sound. The sound stage and imaging were to die for and the VSI75, although good, was no where near the Filarmonia. I found myself regretting selling it because in order to equal or better it, the price of admission was going to be high. This is what led me to grab the ARC Ref75 SE/LS27 combo. Both of these units are broken in, as they were dealer demos. My Sonus Faber Elipsas have never sounded so good. The bass is strong and controlled, the mids are to die for and the highs are smooth and accurate. Vocals have a presence in my listening room like never before. The ARC combo presents a realistic cohesive sound that the Filarmonia could not accomplish. The VSI75 is a fabulous amplifier as well, but the magic really comes with the step up the ARC line.