Quad ESL 57s (rebuilt 2019 by Electrostatic Solutions, Kansas City, Mo) Amps in the picture are home built (not my home) tube front end, Meanwell power supplies, about 80 wpc. I have several other amps. Black boxes behind the Quads are dipole subs with 12 inch JBL drivers, black amps on stands between the subs are Quad QMP mono amps. Bryston xover (70 hz/ 12 db/octave) The Quads will produce really nice bass down to right at 40hz, but cutting off the low end gives them a bit more dynamics. Little boxes on top center of the Quads are Townshend Max supertweeters. Bob Boyer will give me shit for months about the picture quality. C'est la vie.