I've used a variety of ss,tube and hybrid amps to drive the Innersound EROS.My favourite and current reference is a Cary V12.As you maybe aware there is a natural synergy between tubes and electrostats,which in my system is quite evident,solid state just doesn't allow the speaker to realize its full potential,at least the ones I have auditioned.And you don't require a gazillion watts to drive the EROS,the Cary in triode at 50 wpc is magic.
