Welcome to the facanating world of Electrostatics!
I've had a pair of Accustat Spectra 22's for over 15 years now. Speakers with boxes, no boxes, baffles and horns all have come and and gone, a few stayed but the Accustats are still in my main system. Clearly I thoroughly enjoy them...but they are quite difficult to drive.
Amps that I have tried in the past included, Hafler DH200, Forte 3 used as monos. Was also romanced by a smattering of tube amps. Tried my Cary SL80 not enough juice I know! Had a pair of Quad II's, then Audio Research vt100 2's both seemed to work reasonably well but then there was the heat issue. I even once tried my little DEcware se for grins...
That being said even having the stats actively xovered at 80hz they still, if driven hard enough could pop the B+/- rail fuses on any of the amps mentioned. In some cases it was worse, that's how I ended up w/ the mono Forte configuration.... killed a pair of output devices on each side of the amp's!
About 2 years ago I ended up making major changes to the front end in support of adding vinyl as an additional source.
Out went the DIY DACT and Purist Audio passive pre's and in came a Modwright 36.5 along w Dan's SWP 9.0se phono pre. Still using the Forte units, the system really began to open up and sounded excellent. One problem that remained was when driven hard the amp/s would still blow a rail fuse and the fun was over...
My advice would be to listen to what many folks here have already said and find a really good Class D amp to follow a tube front end. This in my opinion is the ticket to audio nirvana.
I've first hand knowledge since adding a pair of Nuforce 9 SEv2's. They completely blew away my Forte amps! More detail, micro-detail, air and most importantly getting the sound stage / imaging correct. Given that most of the stats I've heard have a rather narrow sweet spot, you will be in for a real treat when you get things dialed in.
This combination of tubes and class D far exceeded anything I've experienced before. They drove the stats without a problem. Ok, every once and a while I'd overload one and it would go into protect mode, no fuses so just a reset of the circuit breaker and we're back to enjoying the music.
BTW, I've sent the Nuforce se2's to be upgraded to the se3's. Should have them back next week!!!
Your listing experience may vary so by all means try to audition as many amps as possible. Your local dealers and many internet direct vendors often times have great loaner programs.
Hope this helps,