I have 3.6's, and have had the 1.6qr's as well. The 3.6 is a much better speaker in all aspects, as long as the electronics behind it match the speakers. A lot of clean power is needed.
That said, I believe the 20.1 is the finest speaker made, period, regardless of price. You need to run it with ridiculous power, such as the Innersound ESL monoblocks (800's, or the over the top KW blocks), Krell or Bryston Monoblocks, Plinius as well.
They are a much more cohernt speaker than any hybrid, they are seemless. Like any equipment, definitely take a good test run before purchasing. But you will find many people, not just me, who find the 20.1 to be the finest speaker made, regardless of price.
Good luck
That said, I believe the 20.1 is the finest speaker made, period, regardless of price. You need to run it with ridiculous power, such as the Innersound ESL monoblocks (800's, or the over the top KW blocks), Krell or Bryston Monoblocks, Plinius as well.
They are a much more cohernt speaker than any hybrid, they are seemless. Like any equipment, definitely take a good test run before purchasing. But you will find many people, not just me, who find the 20.1 to be the finest speaker made, regardless of price.
Good luck