Is two Subs better than One?

I have 2 subs and believe that configuration beats one sub.
No offense but it's: "are two subs better than one?

Foster, OK then my answer is "not necessarily". Which way is actually "best" I think depends on the sub's selected low frequency cut-off point.

For filling in low frequencies up to 50Hz, one sub is better. Since the brain can't localize a source below about 80Hz, placement isn't that critical as far as imaging is concerned.

Above 100Hz, two are definitely better than one. Between 50 - 100 Hz it's a tough call, but I'd still start with one. Then, if there's insufficient low-frequency imaging (meaning the bass doesn't seem to come from the mains) then two subs placed somewhere near each main will provide more realism -- but then room acoustics will require more adjustment.
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I would think that two subs are better then one, but my question is: are two medium sized subs like rel stadium
better then one larger stentor (for the last octave)?sorry if am am repeating my self.

Bob Reynolds, great paper just what I was looking for. The paper seamed to say that a fixed position 2 channel System does not have a problem like the multi channel multi seat position environment. Therefore, is it safe to say that one sub in the corner is as good as one in the center wall? Which position is better?
Or is two opposing center wall Subs still much much better?