Hello. I recently purchased a pair of the Reference 3a La Suprema II speakers. They originally sold for $16 - $18,000. They were made in Switzerland and I understand that only a few pair made it over to this side of the pond (I live in Canada). I am not using anything special to drive them. Just a medium - higher end Yamaha home theatre amp. Because these speakers have no cross-over you need not blow your brains out on expensive cables. The manual (if you want to call it that) even says so.
The speakers also do not require much power to run. I am very impressed with the quality of these speakers, which I gather are / were being used in one of UHF's sound testing rooms.
They weigh a ton or at least several hundred kilos and come in 3 cartons. I am still recovering from moving them.
They are quite magnificent and despite what a couple of reviewers have said, their soundstaging blows away all of the other speakers that I have heard on the market. Bi-wiring even makes them better.
I would have no hesitation recommending these speakers to anyone interested in a true, pure audio experience.