I'm planning on moving into a small apartment and would like to choose a suitable Hifi setup. It would be used exclusively (or at least almost exclusively) for music, with my music source being 256kbps files in iTunes so audiophile grade sound quality isn't required but I still want it to perform well. In this environment volume will obviously be kept to moderate levels.
My current thinking is to get a set of affordable stereo speakers such as these KEF C5s at $564 along with a run-of-the mill receiver such as this Onkyo 5.1 channel which is on special at $398. However I have noticed this more expensive stereo Onkyo unit at $799.
Do I need to buy a stereo receiver in order to drive these stereo speakers, or would the cheaper 5.1 channel unit be okay for this purpose? If so then what is the benefit of the stereo receiver compared with the 5.1 channel receiver? Any general feedback would be much appreciated.