mixing subs, amps, and boxes NEVER works how you want it too...believe me.
the two tens, witht he same watts, will be louder (if you set it up correctly) than the 1 15. there are more con inches in the 10's...therefore, they'll physically move more air
i mean...you have to take heed to motor setups, linear excursion, air space, and everything....but at the most basic level....more surface area (cone inches) more air is moved = more sound
