Audibly better sound or cost-intensive gimmickry - the question of whether it should be 5.1 or 7.1 in the home theatre divides opinions. In fact, there are several aspects to consider when answering this question. We will go through 5.1 or 7.1 point by point, and clarify when 7.1 can be worthwhile and when it's better to stick with the smaller solution.