Peter you are in a enviable situation. Agreed in regards to never too much power. You will not be disappointed with Apex Stereo/Commander. I am fortunate in regards to my musical space. Great acoustics. A friend came over who is a singer, and she couldn't resist breaking out in song due to the open nature of the room. You will have the bones for one incredible system! That Commander is a beast! So is the APEX! The Mephisto/Pandora is the most neutral/ transparent combo I ever had. I never had a stereo amp (with the exception of many years ago). According to Rune, Apex/ Commander incorporates all the nuances of previous components. My DV2 DAC pairs very well with Mephisto/Pandora. If I had a more analytical sounding Dac, don't know if that would be the case? Always had monoblocks, and I have never been any more pleased than with Mephisto/Pandora. M3, 91 sensitivity, 4 ohms. It will seldom our never come out of medium bias, unless its a bad recording. You can PM me keep me posted, I will be very curious as to what you think. No problem picking my brain if any questions come up. Good Luck, you are in store for one fun, wild ride!!
John