Once again, my praise for your exceptionally fine products. It was a quite painful process and I had originally no intention to spend that much money for amplifiers. Mind you, I have a German Engineering degree in electronics and computer science. Each loudspeaker had it's own amplifier. Preamp was from Conrad Johnson.
Sleepers wake' has a VERY fast high pitch piano solo which is very demanding.
The other amps, although almost three times more power, could not play as clean and effortless as the Model 5. The purchase of the Jeff Rowland equipment put my mind to rest. I listened the first time to Apogee speakers. Finally I could concentrate on my beloved Mahler, Berliot, Beethoven and also Rolling Stones and Beatles. I tried many different power amplifiers, several of them with considerable higher power rating as my one Model 5.