[. . . ] As a member of QSC's DCS Digital Cinema Speaker Series, the XR-P310 offers high-power handling, excellent sensitivity, and extended bass response in a very compact enclosure. Specifications Frequency Range1 -6 dB half space -10 dB half space Nominal Coverage Directivity Index Q Maximum Output2 123 dB 117 dB 8 nominal Power3 150 W RMS 200 W RMS 50 Hz ­ 20 kHz 42 Hz ­ 20 kHz 90° horizontal x 85° vertical (averaged from 1 kHz to 10 kHz, -6 dB) 7. 5 dB 5. 6 Calculated Peak at Rated Power The XR-P310 Cinema Surround Loudspeaker features a high-power, long-throw 10" low-frequency transducer coupled with a 1" titanium diaphragm compression driver. [. . . ] The system's plywood enclosure features a 15º down angle baffle and Array Optimized Tuning (AOT) for optimum frequency response. The 200 watt continuous power rating and sophisticated crossover provides absolute reliability. Calculated Continuous Impedance Maximum Input 100 hours of 6 db crest factor IEC 268 noise spectrum 2 hours of 6 db crest factor pink noise, 50 Hz ­ 20 kHz, AES method Recommended Amplifier Power Sensitivity 1 watt /1 meter, half space Crossover Frequency Recommended Processing Connectors Transducers Enclosure Dimensions (HWD) Weight ­ Net 400 W RMS maximum into 8 94 dB 2. 6 kHz Subsonic filter at 50 Hz as provided by QSC DCA amplifiers Barrier strip screw terminals accept up to #10 AWG stranded wire 10" long throw low-frequency transducer 1" titanium diaphragm compression driver on a CD horn Plywood, baffle angle is 15° downward 23" x 12" x 12. 25" (584 mm x 304 mm x 311 mm) 31 lb (14 kg) The compact black enclosure with black grille blends into any theatre decor. A new QuickMount bracket design allows for fast, easy and secure installation. 3) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz ­ 20 kHz band limiting, 6 dB signal crest factor. XR-P310 Dimensions Top 12" 304. 8 mm 12. 25" 311. 2 mm 15° Front 23. 01" 584. 4 mm Side Specifications subject to change without notice. ©2009 QSC Audio Products, LLC. QSC, and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U. S. Patents may apply or be pending. pleaserecycle 1675 MacArthur Boulevard · Costa Mesa, CA 92626 · Ph: 800/854-4079 or 714/957-7100 · Fax: 714/754-6174 XR-P310 Spec Sheet ­ 03/01/10 qscaudio. com [. . . ] QSC, and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U. S. [. . . ]