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US 2018/0124501 A1Published application
Acoustic impedance matching device and loudspeaker provided with such a device
AssigneeFocal Jmlab
InventorShintaro Hosoi
Life of this patent
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Abstract
The invention relates to an acoustic impedance matching device arranged so as to be mounted behind a loudspeaker. Said device comprises a chamber at least partially filled with an absorbent material. Said device is characterized in that the cross-section of the chamber increases with the distance from the loudspeaker, and the density of the absorbent material increases with the distance from the loudspeaker.
Claims11
Acoustic impedance matching device arranged so as to be mounted behind a loudspeaker, comprising a chamber at least partially filled with an absorbent material, characterized in that:
- the cross-section of the chamber increases with the distance from the loudspeaker;
- the density of the absorbent material increases with the distance from the loudspeaker.
Dependencies are inferred from the claim text.