Guys, I'm just now beginning to get into the world of surround sound but I don't have a real 5.1 system. I bought a really nice sounding shelf system (don't laugh..it's all I can afford for right now...but it does sound nice). I have the two main speakers in front of me on the wall and I have the 'surround speakers' hanging just behind my couch. I am totally dumbfounded how neat this is. It's technically just two channels but, I swear, those surround speakers seem to be picking up sounds that are not coming out of the front speakers and vice versa. Granted this totally goes away once I leave the 'sweet spot' in the middle of my couch. I am playing CD's that I know are just two-channel (late 80s CD's of Pink Floyd "Saucerful of Secrets", Todd Rundgren "A Wizard A True Star", various Dusty Springfields and, right now, "Are You Experienced") and I swear it's like hearing an actual quad mix. Was there actually some experimenting going in the 60s and 70s with surround audio. "Saucerful of Secrets" in particular seems like they actually mixed it for this type of 'surround'. I know this is not 5.1 but what kind of 'surround' is this that I have. I'm totally getting into it. I'm having second thoughts about getting a real 5.1 system. I would really appreciate it if somebody could educate me a little on this. Thanks in advance.