Built for powerful bass response wherever it's needed! The SSE 1564 Subwoofer is a 2-way bi-amp system comprised of a 15" Pro Rider woofer and a 44XT 4" titanium diaphragm compression driver mounted on a Quadratic Throat Waveguide. The SSE 1564 subwoofer has a rotatable horn section that allows the same cabinet to provide a coverage that is broad in the horizontal or vertical dimension and adjustable by the user. Bi-amp input connection is made via a 4-pin Neutrik in parallel with a terminal strip. The trapezoidal shaped speaker enclosure is constructed of 18mm Baltic birch and painted with a durable textured paint. A 16-gauge powder-coated metal grille with poly cloth covering protects the front of the system from damage. Twelve 3/8"-16 threaded mounting suspension points are provided for flying and mounting. Features50 Hz to 18kHz (+/- 3 dB) when used with a suitably configured digital processor/crossover)Power handling: 600W cont/1200W pgm low frequency section, 100W cont/200W pgm high-frequency sectionSPL: 97dB low frequency section, 113dB SPL high frequency section Nominal Radiation Angle: 60 x 40 degreesDimensions (H x W x D): Front: 33.75" x 19.38" x 21.75" Rear: 33.75" x 8.63" x 21.75"Weight: 103 lbs