H - Electricity – 04 – S
Patent
H - Electricity
04
S
179/8
H04S 1/00 (2006.01) H04R 9/06 (2006.01) H04R 19/02 (2006.01)
Patent
CA 1251740
Abstract: A system for providing the effect of an extended soundstage comprises a pair of stereophonic loudspeakers, each having a movable or vibrational element driven by a pair of voice coils including a principal or main voice coil and an auxiliary or enhancement voice coil. The principal voice coil of each speaker is driven in a customary manner from one channel of a stereophonic amplifier, while the enchancement voice coil is driven in a reversed phase sense from the output of the opposite channel, and sound is effectively provided over an extended apparent source having dimensions beyond the spacing between the loudspeakers.
500500
Arntson Lawrence E.
Johnson David O.
Kirby Eades Gale Baker
Welch Robert B.
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