I'm getting really confused by these new amplifers. I have ordered a 5200 which is 6.1 compatable. I have just seen a review in What Hifi which says that it will only do Matrixed 6.1 NOT discrete 6.1, Is this correct? Looking on the Marantz web site didn't help, they discribe the 5200, 6200 and 7200 as being DTS ES compatible. But not telling you if that includes Discrete 6.1 Any info greatly received.