Compound loudspeaker
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United States of America Patent
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Mar 20, 2012
Grant Date -
Aug 27, 2009
app pub date -
Jun 21, 2006
filing date -
Jun 22, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A compound loudspeaker comprises an acoustically radiating first diaphragm and an acoustically radiating second diaphragm. The first and second diaphragms are substantially coaxial and at least part of the second diaphragm is situated radially outwards of the first diaphragm. There is a gap situated between the first and second diaphragms, and a seal is provided in the gap, thereby preventing or hindering the passage of air through the gap. By providing the seal, the invention solves the problem of audible turbulent airflow through the gap.
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