Soundlab ESL speakers, 86 db. They seem to need more power than even large Martin Logans.Correct my Monoliths were 90db, easier than your 86db, both have nasty impedance and capacitive loads.
Look at an amp that you can leave on with low Class-A Bias, that you can switch up the Class-A bias when you want to listen, Gryphon Antillion does this. As a
Cheers George