User manual QSC AUDIO SC-412

[. . . ] As a member of the DCS Digital Cinema Speaker Series, the SC-412 is a 2-way, bi-amplified screen channel loudspeaker system comprised of two main units--the HF-75 high-frequency system and the LF-4115 lowfrequency system. [. . . ] The HF-75 high-frequency system features a 3" large format (75mm) titanium diaphragm compression driver mounted on a custom designed high-frequency cinema horn with an adjustable pan and tilt bracket. DC blocking capacitors protect against DC or low-frequency signals that would likely destroy an unprotected driver. Power limiter circuitry protects the driver from overpowering and a response correction filter smoothes the frequency response of the horn/ driver combination. Three bolts are all that are required to secure the HF-75 to the top of the LF-4115 enclosure. Specifications Nominal Coverage Frequency Range Crossover Frequency SC-412 90° horizontal x +20 to -30° vertical 33 Hz ­ 16 kHz (-6 dB) 700 Hz, 24 dB per octave LF-4115 HF-75 8 107. 5 dB Impedance Sensitivity 1 watt /1 meter, half space Maximum Input Power1 8 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 4 93. 5 dB 400 W RMS 500 W RMS 60 W RMS 80 W RMS Recommended Amplifier Power 800 W RMS maximum Recommended Processing Connectors Subsonic filter below 30 Hz, > 18 dB per octave Barrier strip screw terminals accept up to #10 AWG stranded wire One 15" (381mm) high efficiency, extended bass woofer featuring a 4" copper voice coil Quasi B4 alignment, ported enclosure with fully flared ports, symmetrical port design, tuned to 36 Hz, constructed of MDF and heavily braced. Features vandal resistant woofer mounting bolts 18. 5" x 30" x 20. 3" (470 mm x 762 mm x 516 mm) 83 lb (38 kg) 123 lb (56. 4 kg) 35. 5" x 32" 100 W RMS maximum 4th order LR crossover at 700 Hz Barrier strip screw terminals accept up to #10 AWG stranded wire 1. 5" (38mm) exit, 3" titanium diaphragm compression driver Tilt/Pan Bracket ±10° vertical tilt ±10° horizontal pan Transducers Enclosure Dimensions (HWD) Weight ­ Net System Weight Baffle Cut-Out 16" x 30" x 20" (406 mm x 762 mm x 508 mm) 40 lb (18. 4 kg) 1) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz ­ 20 kHz band limiting, 6 dB signal crest factor. SC-412 Dimensions Top 21. 53" 546. 9 mm 20. 25" 514. 4 mm 30" 762 mm 15. 46" 392. 6 mm Side 4" 101. 6 mm 18. 38" 466. 8 mm 9. 7" 246. 4 mm 33. 83" 859. 3 mm Front 20. 25" 514. 4 mm Specifications subject to change without notice. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U. S. Patents may apply or be pending. 1675 MacArthur Boulevard · Costa Mesa, CA 92626 · Ph: 800/854-4079 or 714/957-7100 · Fax: 714/754-6174 SC-412 Spec Sheet ­ 06/20/08 qscaudio. com [. . . ] Features vandal resistant woofer mounting bolts 18. 5" x 30" x 20. 3" (470 mm x 762 mm x 516 mm) 83 lb (38 kg) 123 lb (56. 4 kg) 35. 5" x 32" 100 W RMS maximum 4th order LR crossover at 700 Hz Barrier strip screw terminals accept up to #10 AWG stranded wire 1. 5" (38mm) exit, 3" titanium diaphragm compression driver Tilt/Pan Bracket ±10° vertical tilt ±10° horizontal pan Transducers Enclosure Dimensions (HWD) Weight ­ Net System Weight Baffle Cut-Out 16" x 30" x 20" (406 mm x 762 mm x 508 mm) 40 lb (18. 4 kg) 1) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz ­ 20 kHz band limiting, 6 dB signal crest factor. SC-412 Dimensions Top 21. 53" 546. 9 mm 20. 25" 514. 4 mm 30" 762 mm 15. 46" 392. 6 mm Side 4" 101. 6 mm 18. 38" 466. 8 mm 9. 7" 246. 4 mm 33. 83" 859. 3 mm Front 20. 25" 514. 4 mm Specifications subject to change without notice. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U. S. [. . . ]