Solid State Amps for Quad ESL 57?

I use a rebuilt and updated 405. The only mod i did was replace the TLO71 with an opa227p (not just a drop-in replacement) and lower the sensitivity so it mated better with my Modulus 2A.
Magic for about $300!

I got reasonably good results with a Bedini 25/25 but would probably use tube amplification today.

I know everything Ralph has said in this thread is dead-on accurate (as always).

It really makes me wonder how some people (some people who DEFINITELY know what music sounds like such as Chesky) power their Quad 57s with the ASR amp. The Emitter is, indeed, a class 'voltage-paradigm' solid-state amp, with power output nearly inversely linear to impedance. Based on the Quad's impedance plot, it should sound terrible, but apparently it sounds excellent and perfectly balanced.

(6Moons also attests to this in their report on Robin Wyatt's system.)

I meant to say "CLASSIC 'voltage-paradigm' amp".

And I also meant to say "power output nearly inversely linearly proportional to impedance". But, heck, everybody figured that out.

Hi there I've run ESL57's both single, stacked and with sequerra ribbons with Quicksilver 8417's. I got much better bottom end when I ran them as a single pair by putting them on stands about 18-20" off the floor and tilted up so the panels were more vertical. Better bottom end and much larger soundstage. You might like to try this.