Bandpass woofer and method
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United States of America Patent
Stats
-
Dec 12, 1995
Issued Date -
N/A
app pub date -
Aug 23, 1994
filing date -
Sep 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A single-vented bandpass woofer loudspeaker system design and method for enabling operation in smaller enclosure volumes with only moderate loss of efficiency. The bandpass system has an enclosure with a partition dividing it into a first sealed chamber and a second chamber having a passive radiating port communicating with air outside the enclosure. A driver is mounted in the partition. Novel, empirically determined tuning ratios which depend upon system variables are defined. By adjusting the system variables to keep the tuning ratios within empirically determined values, a good relationship between flat response, bandwidth and efficiency is achieved. Unexpectedly, using a higher than normal moving mass of the driver leads to an acceptable system with a very small enclosure volume.
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Cited Art Landscape
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