Here is what I typically listen to the most often and feel that these are some of the best to calibrate the system.

Mobile Fidelity Gold CD's: Alan Parsons Project TALES OF MYSTERY AND IMAGINATION, Stevie Wonder INNERVISION.

Mobile Fidelity SACD's: Mike Marshall GATOR STRUT, Ravel BOLERO, Mussorgsky PICTURES AT AN EXHIBITION, Prokofiev IVAN THE TERRIBLE, Isaac Hayes HOT BUTTERED SOUL

Others SACDs: Beck SEA CHANGE, Elton John CAPTAIN FANTASTIC & TUMBLEWEED CONNECTION, Billy Joel THE STRANGER, Ray Charles GENIUS LOVES COMPANY, David Bowie ZIGGY STARDUST

HDCD: Radiohead OK COMPUTER/HAIL TO THE THIEF (rare import), Queen GREATEST HITS 2 Disc (rare Japanese import).