A speaker physics question.

[VolvoHeretic]

Ignoring any potential HF reflections off the frame/motor:

Radiation from a Baffled Piston
Radiation from monopoles, dipoles, quadrupoles
Sound Radiation from Cylindrical Radiators

GM

Thanks for the sites GM. This will take a while to absorb. Will report back with couple more questions when Iv'e reread it a few more times.