I have a Wharfdale 750s and have recently purchased the goodmans ghc50 speaker set and was wondering if it's possible to get proper surround sound? I'm very much a novice at the moment so I'm sorry if the questions a bit vague, basically I've connected throught the two left/right outputs to the speakers which give a pretty good sound but was wondering if it's possible to get any type of surround effect without having to buy a seperate amp? The ghc50 only has composite inputs and has 6 to allow 5.1 i.e. left/right/surround/subwoofer etc and the wharfdale seems pretty limited in it's outputs. I was basically wondering whats the best setup I can have or if I want to get decent surround sound will I need to look into replacing them or getting any additional components?