Loudspeaker
AssigneeGP Acoustics International Limited
InventorMark Alexander Dodd
Life of this patent
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Abstract
A loudspeaker comprises a reflex port located within the enclosure at a point substantially co-incident with a nodal surface of at least one resonant mode within the enclosure. The amplitude of that resonance at the input to the duct is minimised, hence assisting in filtering out the effect of that resonance without needing absorptive material. Ideally, it is placed at the intersection of two or more nodal surfaces.
Claims11
A loudspeaker, comprising an enclosure, a driver located substantially within the enclosure and including a diaphragm able to oscillate along an axis, and a reflex port comprising a duct extending from a first location within the enclosure to a location external to the enclosure, the first location being substantially co-incident with a nodal surface of at least one resonant mode within the enclosure.
Dependencies are inferred from the claim text.