Yea, a properly set up stereo system, will do both (stereo) and surround. I know many systems that have, just like you, mains, and subs.... With that being said, it all depends on your listening taste. I would also recommend (experiment) for a while . It all depends on your ears. And if you're happy that's all that matters. Surroundsound done properly is awesome though. It's just that many piece meal them together, with all sorts of unmatching speakers. And not being set up properly.