Q-SYS SC-222X Passive 2-Way Cinema Loudspeaker System with HF-75CX2 and LF-2215

Developed specifically for the unique requirements of professional motion picture playback, the SC-222X extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-222X is a passive, 2-way screen channel loudspeaker system comprised of two main units—the HF-75CX2 high-frequency system and the LF-2215 low-frequency system.

The HF-75CX2 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-75CX2 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-222X is designed for ease of installation. The HF-75CX2 components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the HF-75CX2 to the top of the LF-2215 enclosure.

Features:

• Passive, 2-way, screen channel system
• HF-75CX2 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:

• Nominal Coverage: 90° horizontal x +20° to -35° vertical
• Frequency Range: 37 Hz – 16 kHz (-6 dB)
• Impedance: 4Ω
• Sensitivity 1 watt/1 meter, half space: 98 dB
• Maximum Input Power1:
  • 2 hours of 6 dB crest factor pink noise 300 W RMS
  • 50 Hz - 20k Hz, AES method
• Recommended Amplifier Power: 1200 W RMS maximum
• Recommended Processing:
  • Subsonic filter below 30 Hz, > 18 dB per octave
• Connectors:
  
  •  LF-2215:
    • Barrier strip screw terminals accept up to #10 AWG stranded wire
  • HF-75CX2:
    • Barrier strip screw terminals accept up to #10 AWG stranded wire
• Transducers:
  •  LF-2215:
    • Two 15" (381mm) high efficiency, extended bass woofers featuring 3” copper voice coils
  • HF-75CX2:
    • 1.5” (38mm) exit, 3” titanium diaphragm compression driver
• Enclosure:
  •  LF-2215:
    • Quasi B4 alignment, ported enclosure with fully flared ports, symmetrical port design constructed of MDF and heavily braced. Features vandal resistant woofer mounting bolts.
  • HF-75CX2:
    • Tilt/Pan Bracket
    • ±10° vertical tilt
    • ±10° horizontal pan
• Dimensions (HWD):
  •  LF-2215:
    • 35.75” x 30” x 20.3” (908 mm x 762 mm x 516 mm)
  • HF-75CX2:
    • 16” x 30” x 20” (406 mm x 762 mm x 508 mm)
• Weight – Net:
  •  LF-2215:
    • 172 lb (78 kg)
  • HF-75CX2:
    • 40 lb (18.4 kg)
• System Weight: 212 lb (96.4 kg)
• Baffle Cut-Out: 53”x32”