For what it's worth I met Ed many times (I sold semiconductors to Museatex) and he is not only a great guy but a very talented designer. Forward thinking and has a terrific imagination. A great guy to chat with but for whatever reason his stuff never turned my crank. I was never impressed with his amps but thought his preamps showed promise. With some difficult to drive loads (Apogee and Celestions) the Meitner amps ran out of gas. Nice looking and compact, but make sure your speakers are efficient before you make the investment in Meitner amps.