Patent ID: 8094854
Filing Date: 2012-01-10
Classification: H04R

Abstract:
1. A loudspeaker comprising a horn waveguide having a waveguide surface, and a transducer located at a throat of the horn waveguide, the transducer having a substantially rigid convex dome-shaped acoustically radiating surface, the acoustically radiating surface being non-rigidly coupled to the waveguide surface, wherein: (a) a horn angle, subtended between a longitudinal axis of the horn waveguide and the waveguide surface at the throat of the horn, is in the range of 20 to 60 degrees; and (b) an intersection angle, subtended between a plane tangential to the dome shape of the acoustically radiating surface and a plane tangential to the waveguide surface at a point where the dome shape or an extrapolation of the dome shape meets the waveguide surface or an extrapolation of the waveguide surface, is in the range of 85 to 110 degrees.