Ayre QB-9 DSD (upgraded from the original Ayre QB-9) I've been upgrading my Ayre with SR fuses (current Blue) and added the Uptone Audio ISO Regen with the LPS 1.2 linear power supply. I also put an Akiko tuning stick in one of the Ayre XLR inputs. It's very neutral and transparent without sounding cold. Audirvana Plus is 100% compatible with my DAC and the upgrades. I'm running my Ayre DAC through an ASR Emitter II Exclusive amplifier and through a pair of Quad 2905 ESL's.
