Loudspeaker system for electronic piano

Details Loudspeaker system for electronic piano Loudspeaker system for electronic piano

1997-01-15

1998-08-04

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84DIG1, 84DIG17, 381 24, 381 90, 381118, G10H 132, G10H 300

Patent

active

057896933

ABSTRACT:
An electronic piano, comprises: a sound box having a configuration as in a stringed piano; an electronic keyboard carried by the sound box; an amplifying system; and, a control system for the electronic keyboard and the amplifying system. In a configuration corresponding to an upright piano, the sound box has first and second tweeters mounted through the top and directed upwardly, first and second mid-range speakers mounted through the rear wall and directed rearwardly, and first and second woofers directed angularly toward respective front-bottom corners of the sound box. The front wall has two openings through which sound reverberating inside the sound box is emitted. In a configuration corresponding to a grand piano, the sound box has first and second tweeters mounted on the bottom and directed upwardly, first and second mid-range speakers mounted through the bottom and directed downwardly, third and fourth mid-range speakers mounted on the bottom and directed upwardly, first and second woofers mounted through the bottom and directed downwardly, and third and fourth woofers mounted on the bottom and directed upwardly.

REFERENCES:
patent: D322089 (1991-12-01), Orris
patent: 3643000 (1972-02-01), Andersen
patent: 4058045 (1977-11-01), Jennings et al.
patent: 5031500 (1991-07-01), Koike et al.
patent: 5335283 (1994-08-01), Torii
patent: 5374775 (1994-12-01), Kawamura et al.

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