I am poised to order the epic 80 system but I am concerned with problems related to a 4 Ohm system. I am also about to purchase a Denon 4802 to drive the system but I cannot get a straight answer from sales types regarding the impedance matching issue. Can any one provide assurance that these Items are compatible??? How can one know from reading the specs or liturature? I have not found an explicit reference to speaker load in any of the specs I have reviewed. Maybe its there and I don't understand or have missed it ??