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Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
Force Conversion Factors of a Loudspeaker Driver
The magnetoelectrical performane of a loudspeaker driver is often characterized by the force factor B1, in units of tesla-meters. However, the parameter B1-Rc, in units of newtons per -watts, which can be described as a force conversion Fme, allows more meaningful comparisons of magnetoelectrical structures, while a second force conversion factor Fam, with units of -watts per newton, similarly allows comparison between the acoustomechanical characteristics of different cones. The efficiency (ratio of acoustic watts out to electrical watts in) of the driver is derived by multiplying these two force conversion factors together and squaring their product.
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