Ok, i'm quite lost here... I bought some AE Aegis Evo 3 floor standing speakers, i liked them so much i'm about to buy a AE sub, rear and mid speakers for a 5.1 setup, now, my NAD C320BEE amp just has stereo output, i want to know what i need to buy to connect this 5.1 setup, I want to listen to music on it and watch films and all that, I have a NAD C521BEE CD player, would i need to connect that to a 5.1 receiver? would a 6.1/7.1 receiver work ok with a 5.1 speaker setup? Can someone recommend a good 5.1 receiver for me? Because i cant use my stereo NAD amp anymore with that setup(?) does a receiver do the same to sound as what a amp would to enhance it?