US 5,513,270 AGranted

Speaker box

OwnerLeopold A. Lewisinventor

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Abstract

This invention relates generally to vented loudspeakers for the reproduction of musical sounds, but particularly to the design and location of ports or vents that tune the enclosure. The loudspeaker system has an enclosure, having a front baffle and a pair of loudspeaker drivers mounted in the baffle. The enclosure has a hexagonal cross-section. A pair of vents are each located at a juncture of the vertical side edges of the front baffle and its adjoining panels. The vents lead into the enclosure via a conduit, which ends in an inlet. The inlet is positioned within the enclosure to face the rear of the loudspeaker driver. By this arrangement high to mid frequency sound waves radiated within the boundaries of the enclosure and entering the inlet are substantially attenuated in the conduit and low frequency sound waves radiated within the boundaries of the enclosure are reinforced with sound waves directly radiated from the front of the loudspeaker driver.

Claims24

Dependent claims

A loudspeaker system comprising:

a loudspeaker driver;
an enclosure having a hexagonal prism shape generally defined by a front baffle, a first baffle extension and a second baffle extension, a top and bottom panel, a pair of major panels and a rear panel,
said baffle extension being substantially equal to each other and arranged at each side of said front baffle and forming a first angle with respect to said front baffle.
said major panels being substantially equal to each other and each arranged at each side of said rear panel at a second angle with respect to said rear panel;
vent means in said enclosure, comprising a first and a second vent, each vent having, respectively, an inlet within said enclosure, an outlet leading outside the boundaries of said enclosure, and a conduit connecting each said inlet to its associated said outlet,
wherein said outlet of said first vent is provided adjacent to said first baffle extension and said outlet of said second vent is provided adjacent to said second baffle extension, each of said conduits being arranged along the inner face of a respective one of said major panels and said inlets being directed toward the rear of said driver and generally toward a central region of said enclosure
such that high to mid frequency sound waves radiated within the boundaries of said enclosure and entering said inlets are substantially attenuated in said conduits and low frequency sound waves radiated within the boundaries of said enclosure are reinforced.

4 more elements

Dependencies are inferred from the claim text.