Eidolons are much easier to drive than Ascent or Radian.
You simply need about 60 Watts or so of Class A Tube power
and you can even play firebird or Carmina Burana through a pair of Eidolons... they are tube-loving but you cannot use Audio Research amps unless you retube them with good KT88s and recap the coupling caps.
I had Ascents and Monitors before, they are much much harder to drive and amp without sufficient current will
smear and breakup simply with piano music.
I am not sure how magical those LAMMs are but I have used
VAC Vintage, BAT VK60Monos, and now VAC PHIs with amazingly stunning results.