Subthump 12" Stealth
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The only reason might be slightly lower freq reponse, but the box is small and it might peak the 12 more than the 10. Power handeling of a 12 is slightly more than a 10, usually if a larger motor is used.
For me, I don't think I would hear any difference between a 10" vs 12" in the same air space. If anything, due to the small amount of air space, the 10" might be the best choice.



