High Efficiency Speaker Asylum

Posted by Bill Fitzmaurice (P) on June 12, 2023 at 08:06:11

In Reply to: RE: in a word: acceleration. posted by morricab on June 12, 2023 at 04:56:34

A diaphragm accelerates as fast as it needs to for the required excursion and frequency. In your example of 1mm in 1 millisecond vs. the same driver that moves 1mm in 10 microseconds they would not reproduce the same frequency. A wave period of 1 millisecond is 1kHz. A wave period of 10 microseconds is 100kHz.

Acceleration only enters the picture when comparing two different excursions. A given tone at 1mm excursion would require ten times the acceleration as the same tone at 1mm excursion. If the transducer lacked the necessary acceleration to realize the given excursion within the wave period the result would be a lower frequency, not lower sensitivity.

Edits: 06/12/23

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