Thx for the advice! I will try them one day. I auditioned Boulder, Constellation and Audionet. All were great amps, and some a tiny different, but not better and certainly not double/triple. IMO these AVM are sleepers. They are well made, measure exemplary, have tubes and SS and tons of power 1k on all loads, with 1.8k peaks. They are gorgeous as well, no visible screws, glass tops to see inside and tubes, and inside is very well laid out. I could go on and on…. However, you are right on the money with synergy. I hv learned that synergy is really most important… I have a B setup upstairs and I found an amp/ speakers that jived perfectly. Both the amp and speaker makers upgraded these models and a dear friend was always gushing about that setup, so I sold to him and got the new ones of both. Sounds great but whatever magic bound them together in the older models was gone sadly… I still don’t regret the shift though since my buddy is so stoked.