Just wanted to add my $.02. I haven't had experience with Marc's repair work, but he has been graciously trying to help me diagnose a recurring problem with my G68. He's knowledgeable, helpful, and easy going. Together with the other testimonials on this thread, I wouldn't hesitate to hire him for repair work.

Bryon

iMac -> Sonos -> Empirical Audio reclocker -> G68 (modded) -> Pass Labs XA30.5 amp -> Focal 1027be speakers + JL Audio F113 sub. Pioneer Elite PRO 151FD 60" display.

G68 mods... Custom power supply, Audiocom Superclock 4, Rubycon capacitors, WBT Nextgen connectors, ultra low noise op amps, analog output buffer, DSPC c00044, Revelation One filter.