As Jason mentioned earlier
, I gave 5 hour-long presentations at RMAF entitled "Hearing is Believing—Is Hi Rez Digital the Future of Audio?" To allow Showgoers to hear the differences between the hi-rez masters of my recordings and CD and MP3 versions, I used a system put together by HiFi+
editor Roy Gregory for his demonstrations of system tuningAyre A7-xe integrated amplifier, Avalon Evolution NP2.0 speakers (which I reviewed in July
, Vertex AQ cables, Stillpoints rack and speaker stands, and Quantum QX4 "field generator"to which I added a MacBook running iTunes 8 driving a Wavelength Audio Cosecant USB DAC.