thanks. Your message made my heart beat faster. I also restored a pair of ESLs and Quad IIs during the 70s and still groan at having been forced to sell them at liquidation prices when I was forced to downsize in retirement.
FWIW, after spending years pairing the speakers with numerous power amps, I could not find a better match than Quad's own 1950s-vintage Class A Quad II monoblocks. Today, I listen to gear that is an order of magnitude pricier than my old ESL/II combo, but in many ways, the Quads still remain unmatched. Que lastima.
Boy, you would have loved the Quad IIs when they returned, all shiny and refurbed, from Quad’s UK factory!
Here are the only photos I could find, shot at different times during the restoration process. You can see my 220V Quad IIs to the right of one of my Dynaco projects-in-progress, as I originally purchased them, including NOS Quad-branded tubes.