Multiple chamber loudspeaker system

DETAILED DESCRIPTION It is an important object of this invention to provide an improved dual-chamber ported loudspeaker system.
According to the invention, there is enclosure means for supporting at least one loudspeaker driver means for converting electrical energy into acoustic energy.
There is dividing means for dividing the enclosure means into at least first and second subchambers having smaller and larger volumes, respectively.
The dividing means preferably comprises means for supporting the loudspeaker driver means and coacting therewith to separate the first and second subchambers.
There are at least first and second port means in said first and second subchambers respectively for providing first and second acoustical masses respectively.
The first port means directly couples the first subchamber to the region outside the enclosure, and the second port means couples the second subchamber to the first subchamber.
Preferably, the invention radiates insignificant acoustical energy spectral components above a predetermined bass frequency, preferably no higher than 300 Hz, so that human auditory apparatus cannot easily localize on the enclosure means.
Numerous other features, objects and advantages of the invention will become apparent from the following specification when read in connection with the accompanying drawing in which: