User manual QSC AUDIO SB-7118 DATASHEET

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Manual abstract: user guide QSC AUDIO SB-7118DATASHEET

Detailed instructions for use are in the User's Guide.

[. . . ] SB-5118/SB-7118 Features · SB-5118 features a 500 W, 18" transducer · SB-7118 features a 700 W, 18" transducer · Frequency range extends to below 25 Hz when used with the correct B6 filter · DCP, and SF-3 signal processors optionally available · Enclosures feature vandal-resistant woofer mounting bolts 18" Cinema Subwoofers Part of the DCS Digital Cinema Speaker Series, QSC's SB-5118 and SB-7118 subwoofers offer a unique solution that addresses the requirements of digital motion picture soundtracks. [. . . ] Large, fully radiused ports ensure smooth airflow, especially at higher drive levels. With symmetrical port loading, the bass ports are evenly spaced on each side of the transducers, making internal pressure more uniform across the back surface of the woofer. This prevents the cone from being displaced to one side or another by unbalanced air pressure, reducing the chance of driving the voice coil out of the center of the gap at high drive levels. The SB-5118 and SB-7118 are specially designed cinema subwoofers, featuring 500 and 700 watt, respectively, 18" (460 mm) low-frequency transducers mounted in ported enclosures. These should be used with the B6 boost filter option provided by the QSC SF-3 Subwoofer Filter modules or the QSC Digital Cinema Processor to ensure extended response to the lowest audible frequencies. Meeting cinema requirements for the extended low-frequency response differentiates the SB-5118 and SB-7118 from more conventional "rock-and-roll" subwoofer systems. Their frequency range extends to below 25 hertz when used with the correct B6 filter. Specifications Frequency Range1 -6 dB half space -10 dB half space Maximum Output 2 Calculated Peak at Rated Power Calculated Continuous Impedance Maximum Input Power 3 100 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 Transducer SB-5118 SB-7118 24 Hz ­ 100 Hz 19 Hz ­ 250 Hz 22 Hz ­ 100 Hz 19 Hz ­ 250 Hz 129 dB 123 dB 8 nominal 132 dB 125 dB 8 nominal 800 W RMS 1000 W RMS 1200 W RMS 1500 W RMS 1600 W RMS maximum 96. 5 dB 18" (457 mm) 500 W high efficiency subwoofer transducer featuring a 4" (100 mm) copper coil on a Kapton former 2600 W RMS maximum 98 dB 18" (457 mm) 700 W high efficiency subwoofer transducer featuring a 4" (100 mm) copper coil on a glass fiber former Recommended Processing Connectors Enclosure LF boost frequency = 25 Hz, Q = 2. 0, Gain = +6 dB provided by DCP 300, DCM or SF-3 Barrier strip screw terminals accept up to #10 AWG stranded wire, four terminals; two inputs and two parrallel outputs B6 alignment, vented enclosure with summetrical port design, tuned to 25 Hz, constructed of MDF and heavily braced. Features vandal resistant woofer mounting bolts 35. 75" x 30" x 20. 3" 908 mm x 762 mm x 516 mm 160 lb (72. 4 kg) 162 lb (73. 3 kg) Dimensions (HWD) Weight ­ Net 1) All frequency ranges specified refer to measured free field response (half space, 2). [. . . ] 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 qscaudio. com [. . . ]

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