I'm having a hell of a time trying to find a Klipsch DD-5.1 or Creative DDTS-100. So I've sort of given up and am just looking for a cheap regular receiver. I found this Sherwood RD-6500 at CC for a decent price, but I'm just worried about impedence and pre-outs etc. So if anyone has experience hooking up klipsch 5.1's to a regular receiver I'd much appreciate it