I have a Denon 1802 that has 5-Channel Stereo mode. Looking at the new Denons, the 3311 is the cheapest model that has 5-Channel. The lessor models have "Multi Channel" with 5,6, or 7 channel options. What is the difference between the two types? I like my 5-Channel once in awile. Am I loosing anything with the other mode? I was going to get a 2311 but now I think I will go for a 1911 because I don't need the stuff on the 2311.