Alan
I just read your origional post again and now am sorry for making any comments on the 40. I did not read that you already ordered a pair and I do not want to rain on anyones parade.
I posted only to show that for me they did not work and need careful setup and special attention to electronics.
Home demo before purchase if possible.
I owned the Bronz, Silver and Goldi, at the time I was into HT and was using an ATI 1505 and Sony 9000ES processor. The ATI really sucked for two channel music on all three speakers. Sound was bright and fatigueing. I never tried good electronics with any of the PSBs, so a comparison would not mean much.
With the 2s I used a Muse 160 and Muse 3 pre amp.
With the 40s ended up using an ARC D-250 amp and Rogue 99 Magnum pre. Lots of tubes. In the end just was not satisfied.
Next came the S.E.T. route with high efficency speakers.
I presently am using GMA Europa's with an SS Integrated and have never been happier. I find this system to be the most, musical, engaging and emotional of any prior system I have owned, and the least expensive by far.
Enjoy The Music Alan and I wish you the best with your new VMPS 40s.