7.91 pneumatic loudspeaker. Loudspeaker that generates high-intensity sound by controlled variations of the instantaneous volume flow of an air...
7.90 piezoelectric loudspeaker. Loudspeaker that operates by deformation of a piezoelectric...
7.89 magnetostriction loudspeaker. Loudspeaker that operates by deformation of a magnetostrictive...
7.88 electrostatic loudspeaker. Loudspeaker designed to operate by electrostatic...
7.87 electromagnetic loudspeaker. Loudspeaker designed to operate by the variations in the reluctance of a magnetic...
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