I currently have the AVR 500 and the 520 is starting to look very attractive to me especially street priced at 650+or-. Anyway the question I have is will i be able to use the pre-outs from the 520 (rear surround including the rear center) and connect them into the 6 channel inputs of the 500. Now will this give me the DTS discrete I want as oppose to the old DPL set up and have the info taken from the surround info. I know this is new but I would take advantage of the Logic with 6 speakers. Will this work.