Overlay-coil speaker with direct coupling

Details Overlay-coil speaker with direct coupling Overlay-coil speaker with direct coupling

H - Electricity

04

R

330/17, 179/42,

H04R 3/00 (2006.01) H03F 3/26 (2006.01) H04R 9/00 (2006.01) H04R 9/04 (2006.01)

Patent

CA 1136554

7-854CA OVERLAY-COIL SPEAKER WITH DIRECT COUPLING Abstract A loudspeaker with an overlay voice coil and directly coupled push-pull audio amplifier circuit is dis- closed. The overlay configuration compensates for increased input impedance at high frequencies by introducing a trans- former coupling between two co-axial voice coils. The resultant input impedance remains fairly constant over a large frequency range, thereby insuring uniform power trans- fer to the speaker.

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