Vacuum speaker

Details Vacuum speaker Vacuum speaker

H - Electricity

04

R

H04R 1/02 (2006.01) H04R 1/28 (2006.01) H04R 1/42 (2006.01)

Patent

CA 2120488

2120488 9307729 PCTABS00021 A closed box loudspeaker system (9) which has the back of the loudspeaker sealed by a small closed chamber containing a gas which acts like mechanical spring connected to the loudspeaker diaphragm (1). The system avoids the problems inherent in large back chambers by altering the static pressure in the back chamber. To counterbalance the differential pressures either a spring flexible diaphragm (2) or bellows (21) is employed.

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