Patent ID: 7802650

Claim:
In a loudspeaker horn combining a middle and high frequency range, a straight pathway horn body having two throat sections vertically arranged inline and located rearwardly, and two vertical side walls employing a horizontal expansion rate resulting in said side walls terminating in a front plane substantially perpendicular to the horn pathway axis, and partially forming a mouth therewith, said horn mouth and said horizontal expansion rate being proportioned primarily for horizontal dispersion, and further having an internal baffle arranged substantially horizontally between said throat openings, said baffle comprising an differentiating upward angled surface and a differentiating downward angled surface thereby forming two separate and unequal flare rates and pathway volumes within said horn body, said one respective flare rate being optimized for the propagation of high frequencies and thereby forming a smaller volume and said other flare rate being optimized for relatively lower range of frequencies and thereby forming a larger volume, said baffle upward and lower angled surfaces each further comprising unequal respective surface lengths progressing without acoustically significant interruption from approximately the said front plane and terminating rearwardly in a parallel spaced horizontal plane from said front plane, forming a continuous separating baffle between said throat openings, said angled baffle partially defining the respective vertical expansion rates of said two flaring volumes, said angled baffle further dividing said axial pathway equally at the said throat end of said horn body and unequally dividing said pathway at the said mouth end thereof, means for completing said horn body and said horn mouth, and means for standing said loudspeaker horn upon a flat surface.