High Efficiency Speaker Asylum

Posted by morricab (D) on June 12, 2023 at 13:48:20

In Reply to: RE: Are you really of the notion posted by E-Stat on June 12, 2023 at 13:43:36

more simply:

Acceleration = Force/Mass

Same force, high mass → low acceleration = low SPL
Same force, low mass → high acceleration = high SPL

The relationship (for first order effects) is independent of frequency.

Or if you keep mass constant and increase Force then you get higher acceleration = High SPL

It is the acceleration that creates the pressure wave, not displacement and not velocity the rate of change of velocity (acceleration) creates the pressure wave and it's amplitude (SPL).

So, in a word...acceleration defines sensitivity...how you get that acceleration (low mass, high magnetic strength etc.) is the balance played in driver design.

Edits: 06/12/23