Just for the heck of it I went to ebay and did a search Adcom 90 Items, Denon 656 Items Onkyo 341 Items Harmon Kardon 119 Items. This dosen't look like the majority of Items are Adcom..

Axiom M80Ti(4) Axiom VP150(1) Axiom Qs8(4) Axiom M22ti(2) Axiom M3ti(2)