Loudspeaker assembly and system
AssigneeBlueprint Acoustics Pty Ltd
InventorZeljko Velican
Life of this patent
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Abstract
A loudspeaker assembly is disclosed for use in a loudspeaker system having infinite baffle topology. The assembly comprises a driver including a cone and a basket and at least one Helmholtz resonator including a chamber and a vent duct communicating with the chamber and adapted to pass through the infinite baffle. The chamber is dimensioned to provide a tuned frequency well above an operating band associated with the driver. The cross sectional area and length of the vent duct may be set to provide control over duct air noise and low frequency extension. A method of tuning a loudspeaker assembly for use in a loudspeaker system having infinite baffle topology is also disclosed.
Claims19
A loudspeaker assembly forming part of a loudspeaker system having an infinite baffle, said assembly comprising:
- a driver including a cone and a basket;
- and at least one Helmholtz resonator including a chamber and a vent duct communicating with said chamber and adapted to pass through said infinite baffle, wherein said chamber is formed by said cone with air trapped therein with said vent passing through the infinite baffle, wherein said chamber is arranged to tune air trapped between said cone and the infinite baffle, and wherein said chamber is dimensioned to provide a tuned frequency well above an operating band associated with said driver.
A method of tuning a loudspeaker assembly forming part of a loudspeaker system having an infinite baffle, said assembly including a driver having a cone and a basket, and at least one Helmholtz resonator having a chamber and a vent duct communicating with said chamber and adapted to pass through said infinite baffle, said method comprising:
- forming said chamber by said cone with air trapped therein, said chamber being arranged to tune air trapped between said cone and said infinite baffle, the vent duct passing through the infinite baffle, and dimensioning said chamber to provide a tuned frequency well above an operating band associated with said driver.
Dependencies are inferred from the claim text.