That disssipation factor is the acoustical resistance of air and the radiated acoustical energy is dissipated on it.Conrad Hoffman said:Since the speaker does work, i.e., produces sound, it must absorb amplifier power. Therefore, the speaker must have a resistive component no matter how good the dielectric (air?) might be. IOW, it must have a small but not insignificant dissipation factor in operation.
... or rather 0.1%DamageG said:Typical speakers have an efficiency of a percent or 2 ...
ak_47_boy said:Is there any way to calculate the power being dissipated by the diaphragm in this matter?
Could it be because the mass of the diaphragm converts to inductance when mechanical-to-electrical conversion is made?Brian Beck said:By the way, it is interesting to note that there are conditions and frequencies in which the impedance at the drive terminals goes inductive...