I examined the Aesthetix Saturn Romulus's electrical performance with Stereophile's loan sample of the top-of-the-line Audio Precision SYS2722 system (see www.ap.com and the January 2008 "As We See It"); for some tests, I also used my vintage Audio Precision System One Dual Domain. For USB tests, I used my MacBook Pro running on battery power and the Romulus set to USB2.0. I played back test-signal files with Bias Peak Pro, using Apple's AudioMIDI utility to make sure that the sample rate and bit depth were correctly set for each file.
The Romulus's error…