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AssigneeU.S. Philips Corporation
InventorDerk Kleis
Estimating the term…
A loudspeaker combination comprising a plurality of sections of dynamic loudspeakers which are arranged adjacent each other in substantially one continuous plane. A number of these sections can be muted at increasing frequency under the influence of a low-pass filter. All loudspeaker sections are connected in series with each other and each mutable loudspeaker section is shunted by a capacitor. Each low-pass filter is constituted by the impedance of a mutable loudspeaker section with the associated capacitor. One loudspeaker section is not shunted by a capacitor and comprises at least two loudspeakers with the axes of the loudspeakers diverging relative to each other. This has the advantage that the loudspeaker combination has a virtually constant angle of aperture over a wide frequency range.
A loudspeaker system comprising, a pair of input terminals, a plurality of dynamic loudspeakers arranged in sections with the loudspeakers adjacent each other in substantially one continuous plane and all sections connected in series across said input terminals, a plurality of capacitors, means connecting a capacitor in shunt with each loudspeaker section but one so as to form respective low-pass filters with the respective impedances of the loudspeaker sections, said low-pass filters having different cut-off frequencies to provide progressive muting of the loudspeaker sections as the frequency increases, and said one loudspeaker section comprises at least two loudspeakers with the axes thereof diverging relative to each other.
Dependencies are inferred from the claim text.