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Home Audio Signal Processing Stereo-electroacoustical-transducing

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 Stereo electroacoustical transducing

Details
Inventors: Schreiber, William P.;
Assignee: Bose Corporation (Framingham, MA)
Primary Examiner: Isen; Forester W.
Assistant Examiner:
Attorney, Agent or Firm: Fish & Richardson

A woofer enclosure includes left and right input terminal pairs and left and right output terminal pairs. A protection circuit, woofer, satellite protection capacitor, satellite passive equalizer and light bulb intercouple the woofer enclosure input terminal pair and output terminal pair. Left and right satellite assemblies each include a lower enclosure and an upper enclosure with each enclosure including a single full-range driver. Each lower enclosure includes an input terminal pair connected to a respective output terminal pair of the woofer enclosure. A bypass capacitor is selectively connected across the driver in the lower enclosure. The upper enclosure driver is connected in series with the lower enclosure driver through a plug-and-jack connector.

DETAILED DESCRIPTION What is claimed is: 1.
Stereo electroacoustical transducing apparatus comprising, dual-channel woofer means mounted on a baffle inside a dual-channel woofer enclosure divided into first and second subchambers by said baffle and having port means for radiating bass acoustical energy for receiving left and right input audio electrical signals at first and second inputs, summing bass spectral components of said left and right input audio electrical signals to provide a summed bass acoustical signal for radiation by said port means and providing left and right output electrical signals, said dual-channel woofer means and said dual-channel woofer enclosure being characterized by an acoustic response that falls off sharply above a predetermined upper cutoff frequency in the lower range of audio frequencies for radiating in phase spectral components or said left and right input signals by said port means below said predetermined upper cutoff frequency, left and right satellite radiating means for radiating sound signals representative of said left and right output signals respectively, and means for coupling said left and right output electrical signals to said left and right satellite means respectively.
wherein said woofer means comprises a plurality of ports as the sole acoustic output means.
2.
Stereo electroacoustical transducing apparatus in accordance with claim 1 wherein said woofer driver means comprises left and right woofers energized by said left and right input signals respectively.
3.
Stereo electroacoustical transducing apparatus in accordance with claim 1 wherein said woofer means includes left and right passive equalizing means for equalizing said left and right satellite means respectively to provide a more uniform radiation response from said left and right satellite means.
4.
Stereo electroacoustical transducing apparatus in accordance with claim 3 wherein said woofer driver means comprises left and right woofers energized by said left and right input signals respectively


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