Motional Feedback Loudspeaker Essentials Tech Note

On the occasion of the SB1 introduction, we asked its designer Rob Munnig Schmidt to write a comprehensive tech note about motional feedback. Rob’s series of white papers about loudspeaker technology has become a classic. But it requires a trained mind to fully grasp all ins and outs. 

In this new tech note, Rob presents the ‘essentials’ of motional feedback with just high school math and physics. He clearly shows how sound is radiated by a loudspeaker and what type of sensor is needed to effectively apply feedback that reduces distortion and controls resonances.

Any audio enthusiast who reads this tech note will finally understand why he toiled on physics in high school: to gain a little insight in the being of things audio…

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