Abstract: Audio loudspeaker 100 can be arranged in various vertical arrays, such as 102 or 104. Each loudspeaker 100 includes a generally trapezoidal-shaped housing 120 composed of two forwardly projecting lobe sections 122. A pair of low-frequency cone transducers 130 are housed in the lobe sections 122. A vertically arranged set 132 of high-frequency compression drivers are positioned centrally in the housing to project in the forward direction. Three mid-frequency cone transducers 134 are vertically arranged along opposite sides of the high frequency drivers 132. Each of the low-, mid-, and high-frequency transducers are individually powered and controlled by a separate DSP channel.

Abstract: Audio loudspeaker 300 can be arranged in various vertical arrays, such as 302. Each loudspeaker 300 is identical in construction and includes a housing 310 generally in the shape of a rectangular cuboid. A pair of ultra low-frequency transducers 300 are positioned in the housing 310. Each of the ultra low-frequency transducers is individually powered and controlled by a separate DSP channel, thereby to directionally steer the transducer output.

Abstract: Audio loudspeaker 300 can be arranged in various vertical arrays, such as 302. Each loudspeaker 300 is identical in construction and includes a housing 310 generally in the shape of a rectangular cuboid. A pair of ultra low-frequency transducers 300 are positioned in the housing 310. Each of the ultra low-frequency transducers is individually powered and controlled by a separate DSP channel, thereby to directionally steer the transducer output.

Abstract: Audio loudspeaker 100 can be arranged in various vertical arrays, such as 102 or 104. Each loudspeaker 100 includes a generally trapezoidal-shaped housing 120 composed of two forwardly projecting lobe sections 122. A pair of low-frequency cone transducers 130 are housed in the lobe sections 122. A vertically arranged set 132 of high-frequency compression drivers are positioned centrally in the housing to project in the forward direction. Three mid-frequency cone transducers 134 are vertically arranged along opposite sides of the high frequency drivers 132. Each of the low-, mid-, and high-frequency transducers are individually powered and controlled by a separate DSP channel.

Abstract: An improved loudspeaker system which increases low frequency directivity and minimizes directivity discontinuities during frequency transitions includes a first low frequency transducer, a second low frequency transducer, a middle frequency transducer assembly and a middle frequency horn assembly having a small input aperture and a large output aperture. The middle frequency transducer assembly is attached at the small aperture of the horn assembly and directs a middle frequency acoustical signal into the horn assembly. The low frequency transducers and are mounted to opposite interior surfaces, preferably the top and bottom surfaces, of the horn assembly, and direct a low frequency acoustical signal into the horn assembly. A composite acoustical signal directed out of the horn assembly from the large aperture. The distance D.sub.1, measured from the upper transducer voice coil to the lower transducer voice coil, is substantially equal to 0.9048 of the distance D.sub.

Abstract: An improved horn-type loudspeaker system for reproducing an acoustical signal from a corresponding electrical signal includes transducer assembly, an acoustical transformer and an output horn assembly. The transducer assembly includes an inner driver cone, an outer driver cone and a dust cap constructed such that the direct path length from the voice coil to the outer driver cone periphery is substantially equal to the distance from the voice coil to the dust cap peak. Mechanical vibrations produced by the voice coil propagate to the outer driver cone periphery and to the dust cap peak in the same amount of time; thus the acoustical signals transmitted by the outer driver cone periphery and the dust cap peak are substantially time-coherent. The acoustical signal transmitted by the transducer assembly is directed toward the horn assembly by an acoustical transformer through plurality of radial waveguides.