How exactly does the changing voltage translate to diaphragm excursion?
The "secondary school physics" model of a dynamic driver I always imagined is like this:
The air pressure (and diaphragm?) form a close-enough-to-linear spring. Applying voltage to voice coil induces (almost) linear current and Lorentz force moves the diaphragm to the point where it gets equalized by diaphragm's spring force. From linearity of both forces it easily follows that this point is linear to input voltage.
However, I'm not sure how to fit mass into this picture. I guess it should introduce some treble roll-off and phase shift, but how much of them in real world?
Has anybody seen models used by people who actually build this stuff? How it is possible to make all of this insanity sound even close to good? :)