Audio-movement(~kinesis :)) sez:
A full-range ion transducer would be even nicer. Very big though...
The idea is to purpose-build a (most likely tube) amplifier that could drive electrostatic panels directly with no intervening transformerActually, Duke, such a thing exists(ed). I had one. Used 5HB7 tubes, OTL circuit, electronic xover at the input. It sounded excellent -- WHEN it worked... which was rare. The brand is (was) Audio Exklusiv (german). The designer unfortunately died before he could perfect his design -- basically, stabilise the circuit.
A full-range ion transducer would be even nicer. Very big though...