One acoustic watt is 120 dB - 4 acoustic watts is 126 dB.

If a single Active can deliver 4 acoustic watts, or 126 dB, with 4100 watts of electrical power to the speaker, it would take the same power per speaker through 1 quadrillion actives to hit 276 dB. This is, of course, assuming we are in a 4 pi environment.

Ian's gonna need a bigger factory.