Patent ID: 7760895
Filing Date: 2010-07-20
Classification: H04R

Abstract:
1. A loudspeaker system comprising: a. a reflector having a concave reflective surface, said concave reflective surface substantially formed by vertical and parallel first and second sides of a rectangle wherein said first side is rotated around said second side as axis, b. a first loudspeaker positioned in front of and projecting sound above a crossover frequency toward said concave reflective surface and the center of radiation of said first loudspeaker very nearly lies on a principle plane of said concave reflective surface at a perpendicular distance from the vertex of the concavity of said reflective surface equal to less than one-half times the radius of curvature of said concave reflective surface, c. a second loudspeaker positioned to project sound below said crossover frequency substantially in the direction horizontally of said principal plane and the center of radiation of said second loudspeaker very nearly lies on said principal plane, and d. means for supporting said first and second loudspeakers relative to said reflector, e. whereby, said loudspeaker system positioned to a side of a listener can cause said listener to localize the virtual source of sound projected by said first loudspeaker at a distance of a few meters behind said loudspeaker system.