CPC H04R 1/2811 (2013.01) [H04R 1/1016 (2013.01); H04R 1/1075 (2013.01)] | 4 Claims |
1. A sound emitting device, comprising:
a first isobaric chamber having a first volume;
a second isobaric chamber having a second volume that is between 1.5 times and 1.7 times the first volume;
a third isobaric chamber;
an air channel that fluidly couples the first and third isobaric chambers;
a first sound driver that emits sound into the first isobaric chamber; and
wherein the first isobaric chamber has a volume of no more than 7 cc, and the first sound driver is no larger than 70 mm in diameter.
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