I use the AU24 in my system, a minimalist one that consists of Sony SCD777ES, Berning Sigfried tube amp, and a pair of Merlin VSM-MM. The result is quite realistic,and it draws out the musical response nicely. The bass especially comes out very clean with the Au24. For CD that sounds not engaging before, it comes alive now. Last night I listened to the Georghui recording of Verdi heroine with the Au24 in the system and the effect is musically indeed.