I owned the Placette RVC for a few years, tried the Promitheus in my system, and now own the Sonic Euphoria. The Placette had great transparency but I in my system I needed to listen at louder levels to get dynamic impact. The Sonic Euphoria has outstanding micro and macro dynamics, seemingly at all listening levels - very cool. The Promitheus was very impressive for its price, though not quite the same level of performance as the other two to my ear. A friend who heard all three, like the Placette and Promitheus, but went out and purchased a Sonic Euphoria the next day after he heard it.