Got my 20.7s 4 weeks ago. I am using a Modwright KW150 directly driven by my DCS Purcell/Elgar. I plan on building my system over the next couple of years. It came down to Sashas or Magico Q5. I made the mistake of listening to a pair of 3.7s and it was simply magic. I was connected to the music in a way I did not think possible. I have only scratched the surface of what the 20.7s can do and yet it is so amazing that I could make no changes and never look back.
A pre-amp is a next, so I can get my vinyl up and running. My final amp is going to be the hardest choice. My last set of planers were reworked Apogee Divas and I simply did not want to use big tube amps and found the Divas just not to my liking with solid state. The 20.7s present a fleshed out midrange with the KWA150 . Love tubes but tired of the 40 year hassle of keeping them running.Time will tell.