I started with the MCD Pro back in the late 80's feeding Audio Research tubed gear into surround sound LS3/5a speakers. One of the AR amps blew a tube and circuit board and I got tired of having them repaired. Called a fellow at the stereo shop who gave me a trade on the AR gear + LS3/5a's for a pair of M100s. Have stuck with M since then.

iMac --> ATV --> 568.1 --> M33 LCR + M555 --> AIM8Five + B&W PV1 + Panny 50" HD
iMac --> Apogee Duet --> Neumann KH120A
Anapeg SD11 Pedal Steel Guitar --> Hardwire RV7/DL8 --> Telonics FP100 Volume Pedal --> Little Walter Tube Amp --> Telonics Cab + Eminence EPS-15C