Mountain-high, I was at RMAF and heard dc10audio system and Vapor system (Cirrus Black and Joule). I'm not sure what your association with Mountain-high is. Your limited number of posts and your immediate bashing of another manufacturer and praising of dc10audio are suspect. I have complete opposite opinion of these two systems than you. Dc10audio was very fatiguing and bright...surprising given tube amplification and vinyl source. I left after 10 minutes of hearing Dc10audio. Although I have had some reservations about Vapor audio given some of the controversial threads, I was very impressed by the sound of the Vapor audio system at RMAF. It was very dynamic, extended in highs without brightness, very good imaging and soundstaging. Most important the system had very good tonality/timbre of vocals and instruments. I thought they had one of the top 5 rooms at RMAF. Given the pricing of the Cirrus and Joule, Vapor audio produces one of best bang for the buck. The Vapor systems came pretty close to one of my other favorite room using the Raidho C1.1, which can run close to $20k for a pair.