Patent ID: 8781145
Filing Date: 2014-07-15
Classification: H04R

Abstract:
1. A loudspeaker system with an inverse horn enclosure comprising: at least one electro-acoustical transducer mounted in a transducer opening on the horn enclosure, the electro-acoustical transducer comprising a moveable diaphragm for converting an electrical input signal into a corresponding acoustic output having pressure; a first compression chamber comprising the transducer, a first internal volume that receives the acoustic output from the diaphragm, and a first exit comprising a first cross sectional area, wherein the first internal volume is configured to increase the pressure of the acoustic output from the diaphragm towards the first exit; a second compression chamber comprising a second entrance and a second exit comprising a second cross sectional area, the second entrance directly acoustically connected to the first exit of the first compression chamber, and the second cross sectional area being smaller than or equal to the first cross sectional area; and a third compression chamber comprising a third entrance and a third exit comprising a third cross sectional area, the third entrance directly acoustically connected to the second exit of the second compression chamber, the third compression chamber tapering from the second cross sectional area at the third entrance to the third cross sectional area at the third exit, and the third cross sectional area being smaller than or equal to the second cross sectional area; and an exit of a last compression chamber acoustically coupled to an external environment.