The two best systems I've heard both had Ridge Street Sason speakers.
Eric Hider has the best room. Combined with the Sason's it is a great experience.
Robert Schult had the best system. If he had Hiders room I don't know if I would have left without police intervention.
My room sucks and won't get much if any better. It limits my system from being it's best.
Hah! He's being awfully modest for whatever reason (it's the holidays). If you don't think a full blown Empirical Audio front end, Dodd battery pre, Kraft mono's, and Salk HT3's doesn't produce extra-ordinarily ear pleasing music, even in a difficult room, you'd have to be a stone. Heard this myself several times, loved that, 'nuff said.
Best system I've ever heard was actually about 20+ years ago at a dealer in California, of all places. Mostly equipment no one has heard of. SOTA Star TT, Souther linear tracking tonearm, Clearaudio cartridge with an early VTL tube pre I don't recall, two of the original model Classe DR-3 Class A monsters bridged, and a speaker called the "Trapegon" made by RR Designs (Ron Reznick).
http://www.trapagon.com/Audio/History/history.html The original 803s and the Trapegon itself to the right in the pic in piano black. Everything he did has since been widely copied - trapezoid non-parallel shape by Avalon among others, isolated external XO's, isolating the individual drive unit boxes (KEF, B&W, Aerial, ...), huge air core inductors, and fancy film caps of military origin. All his own RR wiring. This system was simply heavenly, such that I couldn't get up out of the chair. Amazing for reproduced sound, especially full range acoustic piano dynamics and nuances. Despite a lot of "progress" (and marketing) since that time, they truly had it figured out way back then.
Second best was a full Ivor's Linny system with Quad ESL63's and Gradient subs, at a dealer in downtown Chicago. Never going to blow your hair back, but oh so real in the midrange. Vocals were absolutely there with you.
Tom