User manual PIONEER SR-303

[. . . ] As a member of QSC's DCS Digital Cinema Speaker Series, the SR-303 offers high-power handling, excellent sensitivity, and extended bass response in a very compact enclosure. [. . . ] The system's plywood enclosure features a 15" down angle baffle and Array Optimized Tuning (AOT) for optimum frequency response. The 300 watt continuous power rating and sophisticated crossover provides absolute reliability. A 50º controlled vertical coverage provides for a better reach and more consistent sound pressure levels across the audience area. A traditional U-bracket is also available in lieu of the QuickMount bracket system. Specifications Frequency Range1 -6 dB half space -10 dB half space Nominal Coverage Directivity Index Q Maximum Output2 125 dB 119 dB 8 nominal Power3 250 W RMS 300 W RMS 50 Hz ­ 20 kHz 42 Hz ­ 20 Hz 90° horizontal x 50° vertical (averaged from 1 kHz to 10 kHz, -6 dB) 7. 9 dB 6. 2 Calculated Peak at Rated Power 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 600 W RMS maximum into 8 95 dB 3 kHz Subsonic filter at 50 Hz as provided by QSC DCA amplifiers Barrier strip screw terminals accept up to #10 AWG stranded wire 4 x 6. 5" long throw low-frequency transducers 1" titanium diaphragm compression driver on a CD horn Plywood, baffle angle is 15° downward 24" x 14. 3" x 13. 25" (610 mm x 363 mm x 336 mm) 44 lb (20 kg) 1) All frequency ranges specified refer to measured free field response (half space, 2). 2) Calculated SPL at 1m, (half space, 2), speaker operating at rated RMS power with pink noise within specified frequency range. 3) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz ­ 20 kHz band limiting, 6 dB signal crest factor. SR-303 Top Dimensions 14. 3" 363. 2 mm 13. 25" 336. 4 mm Front 15° 24" 609. 6 mm Side Specifications subject to change without notice. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U. S. [. . . ] 3) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz ­ 20 kHz band limiting, 6 dB signal crest factor. SR-303 Top Dimensions 14. 3" 363. 2 mm 13. 25" 336. 4 mm Front 15° 24" 609. 6 mm Side Specifications subject to change without notice. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U. S. [. . . ]