Agreed. A good sub brings way more into the game than going from 5.1 to 7.1 I had 7.1 in a smaller 12x12' room and took it out as I felt the only thing the rear channel was adding were tippy speaker stands that were hard to get around. In my soon to be larger room (double the length,) I will be experimenting with 7.1 again but still would definitely invest in good subs first.

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