I'm currently in the process of planning out what components I want to replace my DA4ES with. My plan is to get the Pre-pro + Amp and then recoup some of that cost by selling the DA4ES. With that in mind - I was thinking about going for a Outlaw 950 + some USED ~$1000 amp. My questions regarding this ~$1000 amp are as follows: -Is there a audible difference between the old Anthem MCA5 and the newer MCA50? -Would I notice anything at all if I switch to a Rotel RMB-1075? (125W Continuous vs DA4ES's *supposed* 110W - I know the 2 channel is higher but not sure about all channels driven) -And if there's not much of a difference, how much wattage should I go for as a minimum if my current setup is a pair of Paradigm Studio v2 40s, v2 CC, and Monitor 7s(rears). I'm planning on selling the 7s and getting a pair of 60/80/100s depending if a good deal comes up for a used pair. I'd like to get a good price/performance ratio (based on used pricing) but I'd also like to satisfy my upgrade bug. I don't think I can get any better than a used Outlaw 950 for the prepro so that's why this post was mainly directed at the amp section. Any advice is appreciated.