Well, in general, the sound quality I get from my existing 4.1's are outstanding. The extra sub alone for me is worth it though and I guess at this point,instead of investing in a new system I'm trying to make do with what I have and thought this might expand my experience a bit. If the hassle involved isn't worth it, I'll look into buying a new system. Figured I would ask here before heading down that path though.( this is mainly a PC that is used for music, nothing more)