Acoustics – Diaphragm and enclosure – With horn
Patent
1989-11-30
1991-05-07
Fuller, Benjamin R.
Acoustics
Diaphragm and enclosure
With horn
181144, 181156, 181159, 181199, 381156, H05K 500
Patent
active
050128892
ABSTRACT:
A loudspeaker enclosure accommodates at least one speaker in the front wall of the enclosure. The interior of the enclosure is divided into two smaller chambers by means of a partition inclined with respect to the front and rear walls. One such chamber is adjacent to the speaker, while the second or rear chamber is separated from the front chamber by the partition. Below the speaker is a vent or port in communication with the rear chamber. Sound waves emanating from the rear of the speaker are reflected by the inclined partition and reflected upwardly toward the top of the speaker enclosure. The partition does not extend to the top wall of the enclosure, thereby allowing sound waves to reflect off of the top wall and enter the rear chamber. The sound waves then exit the enclosure through the port below the speaker. The rear waves are thus delayed with respect to the front waves from the speaker to achieve the desired tuning of the speaker system. Furthermore, the arrangement of the interior partition causes the rear waves to be compressed at two locations thereby increasing the effective delay and further improving low frequency response.
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Fuller Benjamin R.
Rogersound Labs, Inc.
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