Acoustics: Sound Fields, Transducers and Vibration, 2nd Edition

6.4. Power output

The acoustic power radiated in watts from both the rear and the front sides of the loudspeaker is

W = | u ˜ c 2 | 2 ( 2 R M R )

(6.19)

Hence, assuming ω ² L ²   ≪   (R _g   +   R _E )², and using Eq. (6.1) for u ˜ c , we obtain

W = | e ˜ g 2 | 2 2 B 2 l 2 R M R ( R g + R E ) 2 ( R M 2 + X M 2 )

(6.20) ...