Loudspeaker apparatus for electronic keyboard musical instrument

Details Loudspeaker apparatus for electronic keyboard musical instrument Loudspeaker apparatus for electronic keyboard musical instrument

1992-11-12

1994-05-03

Gellner, Michael L.

Acoustics

Combined

181144, 181156, H05K 500

Patent

active

053089375

ABSTRACT:
A loudspeaker apparatus for an electronic keyboard musical instrument has a shelf board constituting a casing of the musical instrument. The shelf board has a sound emission opening. A loudspeaker is mounted on the shelf board in alignment with a fringe of the sound emission opening. A speaker box is mounted on the shelf board so as to enclose the loudspeaker.

REFERENCES:
patent: 4601361 (1986-07-01), Nakada
patent: 5086686 (1992-02-01), Misawa et al.

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