VicDamone, I believe that the JRDG demo room features an Aeris DAC powered by the new supercapacitor-based DC external power supply; Aeris feeds a pair of M725 monoblocks; and these feed the aforementioned Revel Salon 2s. Conversely, I utilize a JRDG Criterion pre into the M725 monoblocks and these into Vienna Die Muzik. Guido