SC-312X
Cinema Loudspeaker System
Features
•Passive, 2-way, screen channel system
•SC-312X provides 90° horizontal by +15° to -35° vertical coverage
•Low distortion waveguide provides highly articulate dialogue
•Shallow depth (20") facilitates installation
Developed specifically for the unique requirements of professional motion picture playback, the SC-312X extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-312X is a passive, 2-way, screen channel loudspeaker system comprised of two main units—the HF-63X1 high frequency system and the LF-3115 low- frequency system.
The HF-63X1 high-frequency system features a 2.5" (63mm) titanium diaphragm compression driver mounted on a custom designed high frequency cinema horn with an adjustable pan and tilt bracket. The HF-63X1 includes a driver protection and equalization network. 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. The driver and equalization network provides for more reliable operation, ensuring the show will go on.
The LF-3115 15" (381mm) low-frequency enclosure is designed specifically to address the extended low- frequency response required for cinema applications. The LF-3115 covers the frequency range from 35 Hz to 1000 Hz, depending upon the high- frequency system requirements.
The SC-312X is designed for ease of installation. The HF-63X1 components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the HF-63X1 to the top of the LF-3115 enclosure.
Specifications | SC-312X | |
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Nominal Coverage | 90° horizontal x +15 to -35° vertical | |
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Frequency Range | 33 Hz – 16 kHz (-6 dB) | |
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Impedance | 8Ω | |
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Sensitivity 1 watt /1 meter, | 95 dB | |
half space | | |
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Maximum Input Power1 | | |
2 hours of 6 db crest factor | 150 W RMS | |
pinknoise, 50 Hz – 20 kHz, | | |
AES method | | |
Recommended Amplifier Power | 300 W RMS maximum | |
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Recommended Processing | Subsonic filter below 30 Hz, > 18 dB per octave |
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| LF-3115 | HF-63X1 |
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Connectors | Barrier strip screw terminals | Barrier strip screw terminals |
| accept up to #10 AWG | accept up to #10 AWG |
| stranded wire | stranded wire |
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Transducers | One 15" (381mm) high efficiency, | 1.5" (38mm) exit, 2.5" titanium |
| extended bass woofer featuring a | diaphragm compression driver |
| 3" copper voice coil | |
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Enclosure | Quasi B4 alignment, ported | Tilt/Pan Bracket |
| enclosure with fully flared ports, | ±10° vertical tilt |
| symmetrical port design, tuned to | ±10° horizontal pan |
| 36 Hz, constructed of MDF and | |
| heavily braced. Features vandal | |
| resistant woofer mounting bolts | |
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Dimensions (HWD) | 18.5" x 30" x 20.3" | 16" x 30" x 20" |
| (470 mm x 762 mm x 516 mm) | (406 mm x 762 mm x 508 mm) |
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Weight – Net | 83 lb (38 kg) | 40 lb (18.4 kg) |
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System Weight | 123 lb (56.4 kg) | |
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Baffle Cut-Out | 35.5" x 32" | |
1) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz – 20 kHz band limiting, 6 dB signal crest factor.
