Patent ID: 6628796
Filing Date: 2003-09-30
Classification: H04R

Abstract:
A loudspeaker system comprising at least one mid-frequency sound chamber having an inlet for receiving mid-frequency sound waves propagated from a mid-frequency acoustical transducer and at least one high frequency sound chamber having an inlet for receiving high frequency sound waves propagated from a high frequency acoustical transducer, said inlet of said mid-frequency sound chamber being concentrically oriented about said inlet of said high frequency sound chamber, a waveguide, said at least one high frequency sound chamber having a substantially rectangular high frequency outlet slot through which the high frequency sound waves propagated by said high frequency acoustical transducer enter into said waveguide, said at least one mid-frequency sound chamber having two substantially rectangular, substantially parallel mid-frequency outlet slots spaced on opposite sides and equidistant from said at least one high frequency outlet slot through which the mid-frequency sound waves propagated from said mid-frequency acoustical transducer enter into said waveguide, said waveguide being formed such that said two mid-frequency outlet slots and said high frequency outlet slot form a substantially continuous wavefront at an exit end of said waveguide which wavefront spans a range of both the high and mid-frequency sound waves that extends substantially from one wall of said waveguide to an opposing wall of said waveguide.