I realize this is a very old thread but I recently hooked up the Quicksilver KT Mono Amplifiers to my Vandersteen 2Ci speakers. Glorious sound. I thought they were more synergistic with the Vandy's than with other speakers I heard them with including DeVore gibbon Super Nine speakers, with KT150 tubes driving B&W Nautilus 801 speakers and with Acoustic Zen Crescendo MK II loudspeakers. Vandersteens and Quickies get a thumbs up from me.