amp for vandersteens

https://www.audiogon.com/listings/lis9a513-quad-esl-2805-electrostaic-planars#&gid=1&pid=1((( Quicksilver, Audio Research, and Rogue with magical results..... )))  quoted from above Bob FR.  Bob and I JohnnyR some time ago installed Quicksilver amps into his 9x12 room and easily made it work by hi passing the amps with both our choice preference 33 k Vandersteen x2
 your choice may vary which brought his in-room bass response to ideal results allowing these full-range speakers to work in this room amazingly well and also discovered he didn't have to settle for a mini box.
  Best JohnnyR

I had those speakers, honestly any quality amps with 40 or so quality watts will work. They are very forgiving. 
That being said they will reveal differences, so the higher the quality the better. 
I’ve used tubes and SS to great success. 

I run my Treo's with Atma MA-1's, albeit with crossovers and Vandy subs.
I bet a pair of M 60's would be capable of driving the Vandy 2's, even without the subs. Unless you want to reproduce a rock concert.
Bob

I use Ayre with my Vandy 5A's ..  Im happy

Steve Mccormark mentioned before in the forums that people who own Vandersteen speakers report that the Mccormack amps can make them sing and perform as if they were made for each other. However they are increasingly becoming hard to find, but not impossible, especially ones with the upgrades.