Do be aware that Quad ESLs, both original (ESL57, ESL63) and the modern ones made under Chinese ownership, are not that reliable and will require servicing and repair, if being looked at as a long term purchase. Unlike conventional box type loudspeakers including horns etc which very rarely require servicing. All ESLs are big and heavy which creates more problems when they have to be shipped back for servicing work. It is essential to have/keep all the original packaging.Quads and horns, in general, are entirely different animals. I find later edition Quads to work best with stable, musical solid-state amplifiers and Class AB tube amplifiers from 7-100 watts/channel. That said, perhaps worth a shot with you Allnic amplifier if you go that way. A set of efficient horns of any make would be sympatico with you, Allnic. I understand Living Voice dynamic speaker range is quite exceptional, affordable, and designed for use with low-power tube amplifiers, so definitely worth a listen, especially in the UK.