A close friend and Accuphase/Avalon dealer here in Denver--John Barnes of Audio Unlimited has been demonstrating the Eidolons with all Accuphase gear (a pair of A50s and the 290 preamp, along with the DP-75 CD player) since the speakers came out. The amps will push the Eidolons in an 18' x24'x10' acoustically-designed listening room to extremely high SPLs. John also has driven the Eidolons with other components he sells, including the big $35,000 Boulder amp, Electrocompaniet, Air Tight, conrad-johnson and Muse, to mention just a few. I've heard nothing that sounds better driving the Eidolons than the A50s. Don't let the 50wpc rating fool you; these are Class A high-current units of extreme efficiency that make magnificent sound with the Eidolons. IMO, the big Boulder didn't do any more for me than the Accuphase amps. Try them, if you can. Very synergistic.
