Q-SYS SC-222 Bi-Amp 2-Way 2x15-inch Cinema Loudspeaker System with HF-75C and LF-2215

Developed specifically for the unique requirements of professional motion picture playback, the SC-222 extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-222 is a bi-amplified, 2-way screen channel loudspeaker system comprised of two main units—the HF-75C high-frequency system and the LF-2215 low-frequency system.

The HF-75C high-frequency system features a 3” (75mm) titanium diaphragm compression driver mounted on a custom designed high-frequency cinema horn with an adjustable pan and tilt bracket. The HF-75C 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 smooths the frequency response of the horn/driver combination. The driver and equalization network provides for more reliable operation, ensuring the show will go on. LF-2215 dual 15” (381 mm) low-frequency enclosure is designed specifically to address the extended low frequency response required for cinema applications.

LF-2215 covers the frequency range from 37 Hz to 1000 Hz, depending upon the high-frequency system requirements. Close Coupled Woofers (CCW), with their tight spacing between woofers, improves coupling and keeps coverage angles wide over a greater frequency range than more widely spaced designs.

The SC-222 is designed for ease of installation. The HF-75C components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the HF-75C to the top of the LF-2215 enclosure.

Features:

• Two-way, bi-amplified screen channel system
• HF-75C provides 90° horizontal by +20° to -35° vertical coverage
• LF-2215 is constructed of MDF and features single woofer chambers
• Low-distortion waveguide provides highly articulate dialogue
• Shallow depth (20”) facilitates installation behind the screen

Specifications:

• SC-222:
  • Nominal Coverage: 90° horizontal x +20 to -35° vertical
  • Frequency Range: 37 Hz – 16 kHz (-6 dB)
  • Crossover Frequency: 700 Hz, 24 dB per octave
• LF-2215:
  • Impedance: 4Ω
  • Sensitivity 1 watt/1 meter, half space: 98 dB
  • Maximum Input Power:
    • 8 hours of 6 dB crest factor IEC 268 noise spectrum: 600 W RMS
    • 2 hours of 6 dB crest factor pink noise, 50 Hz – 20 kHz, AES method: 800 W RMS
  • Recommended Amplifier Power: 1200 W RMS maximum
  • Recommended Processing: Subsonic filter below 30 Hz, > 18 dB per octave
  • Connectors: Barrier strip screw terminals accept up to #10 AWG stranded wire
  • Transducers: Two 15" (381mm) high efficiency, extended bass woofers featuring 3” copper voice coils
  • Enclosure: Quasi B4 alignment, ported enclosure with fully flared ports, symmetrical port design, constructed of MDF and heavily braced. Features vandal resistant woofer mounting bolts
  • Dimensions (HWD): 35.75” x 30” x 20.3” (908 mm x 762 mm x 516 mm)
  • Weight – Net: 172 lb (78 kg)
• HF-75C:
  • Impedance: 8Ω
  • Sensitivity 1 watt/1 meter, half space: 108 dB
  • Maximum Input Power:
    • 8 hours of 6 dB crest factor IEC 268 noise spectrum: 40 W RMS
    • 2 hours of 6 dB crest factor pink noise, 50 Hz – 20 kHz, AES method: 75 W RMS
  • Recommended Amplifier Power: 100 W RMS maximum
  • Recommended Processing: 4th order LR crossover at 700 Hz via QSC processor
  • Connectors: Barrier strip screw terminals accept up to #10 AWG stranded wire
  • Transducers: 1.5” (38mm) exit, 3” titanium diaphragm compression driver
  • Enclosure: Tilt/Pan Bracket ±10° vertical tilt, ±10° horizontal pan
  • Dimensions (HWD): 16” x 30” x 20” (406 mm x 762 mm x 508 mm)
  • Weight – Net: 40 lb (18.4 kg)