High accuracy bass reproducer device

Details High accuracy bass reproducer device High accuracy bass reproducer device

H - Electricity

04

R

349/72, 181/8

H04R 11/02 (2006.01)

Patent

CA 1143050

Abstract: the present invention is directed to an apparatus for reproducing the bass components of an audio signal with a high degree of accuracy and minimal distortion, utilizing an enclosure of relatively small size. The apparatus com- prises a substantially sealed enclosure in combination with a radiating diaphragm driven by an electromagnetic transducer, the principal diaphragm restoring forces being the elastic forces exerted against the diaphragm surfaces by the gaseous medium engaging such surfaces. The device is characterized by the elimination of the roll or surround joining the cone to the frame as heretofore always employed in reproducers of the air suspension type as the means for effecting a sealing of the enclosure, and the utilization of a rigid peripheral portion of the diaphragm immediately adjacent a parallel interior surface portion of the transducer mechanism to define a gap of minimal dimension, said gap being elongated in the direction of movement of the diaphragm, the clearance provided by said gap being maintained at minimal value con- sonant with movements of the diaphragm free from mechanical interference.

359941

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