I use the Primare A30.2 with the EAII. The sound is very pleasing with ample power and finesse.
I listened the Electa Amator with many S.S and it sounded always perfect
Obviously you can try with good S.S .. a suggestion could be a Parasound Halo A21 , I saw one here preowned sold for less than 1500 $USD
But remember to try only good S.S with high current and amperes on the speaker cables .. Electa is fantastic speaker but demands current from amps.
While EA might demand more power than the typical stand-mount speaker, I would not rule out tubes in your search for the best amplifier. In using a tube amp, you might loose a degree of bass authority, but the high end-response might be more to your liking? As usual, it's a matter of personal preference.