I love that you have the Bose 901's hooked up and ready to go. Do you ever use them for straight 2 channel? I can imagine they would be effective surround speakers in a home theater. But I'm curious about how they might hold up in a two channel set up. I remember being wowed when very young when a neighbor played his 901's, hanging from chains in the corners of his room. Sounded great to my young ears...
Of course, your more contemporary gear looks great, and I assume sounds wonderful. Your 901's put in in the Way Back Machine.