I have a Denon avr3600 I have used for almost six years. How much of a difference would I hear going from it to the Outlaw 950-770 combo? This is quite abit of money for me and I'm trying to figure out if it is worth the move. Actually I am trying to convice my wife and myself! I am using Klipsch speakers. My understanding is that they fixed the hiss a couple weeks ago. If the difference is slight then I will stick with the 3600. What do you think?