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US 4,733,749 AGranted
High output loudspeaker for low frequency reproduction
AssigneeElectro-Voice, Incorporated
InventorsRaymond J. Newman, David E. Carlson
Life of this patent
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Abstract
A loudspeaker system for low frequencies has a manifold chamber into which oppositely mounted and aligned woofer units radiate sound. The chamber radiates the sound perpendicularly to the woofer axes, either directly into space or into a horn. An additional back woofer may radiate directly in the perpendicular direction.
Claims15
A loudspeaker system comprising:
- a speaker enclosure having an opening in a front wall,
- a speaker manifold mounted within said enclosure and communicating with said opening,
- said manifold comprising a pair of substantially parallel side walls, a back wall, and top and bottom walls, defining a manifold chamber, the wall opposite said back wall being substantially open to define a manifold opening and to permit said communicating, said manifold opening being substantially in alignment with said front wall opening, and
- a pair of speaker units, each mounted in a respective one of said side walls, said speaker units being connected to produce sound waves in phase, said speaker units also having axial sound directions substantially in alignment within said manifold chamber, whereby the sound outputs from said units combine and produce improved low-frequency response in the combined sound exiting from said enclosure opening.
1 more element
Dependencies are inferred from the claim text.