Q-SYS SC-413C Bi or Tri-Amp 3-Way 1x15-inch Cinema Loudspeaker System with LF-4115 and MH-1075C

Developed specifically for the unique requirements of professional motion picture playback, the SC-413C extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-413C is a 3-way, selectable bi or tri-amplified screen channel loudspeaker system comprised of two main units—the MH-1075C mid-high frequency system and the LF-4115 low-frequency system.

The MH-1075C mid-high system features a high-output, horn-loaded 10” midrange cone driver and a 3” (75mm) titanium diaphragm compression driver mounted to an adjustable pan and tilt bracket. The MH-1075C includes a driver protection network and a passive crossover for bi-amp operation. Power limiter circuitry protects the high-frequency driver from overpowering. The MH-1075C provides extended frequency coverage for the critical midrange band. A high-power 10” cone driver allows operation as low as 250 Hz, and the advanced phase plug coupling permits a crossover point of up to 1800 Hz to the high-frequency horn. This ensures that most of the dialog range is reproduced by a single element for unmatched intelligibility.

The LF-4115 single 15” (381mm) low-frequency enclosure is designed specifically to address the extended low-frequency response required for cinema applications. The LF-4115 covers the frequency range from 33 Hz to 250 Hz.

The SC-413C is designed for ease of installation. The MH-1075C components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the MH-1075C to the top of the LF-4115 enclosure.

Features:

• Three-way selectable, bi or tri- amplified screen channel system
• MH-1075C provides 90° horizontal by +20° to -30° vertical coverage
• LF-4115 is constructed of MDF and is heavily braced
• Low-distortion waveguides provide highly articulate dialogue
• Shallow depth (20-inch) facilitates installation
• THX approved

Specifications:

• SC-413C:
  • Nominal Coverage: 90° horizontal by +20 to -30° vertical
  • Frequency Range: 33-16 kHz
  • Crossover Frequency: 280 & 1700 Hz, 24 dB per octave
• LF-4115:
  • Impedance: 4 ohms
  • Sensitivity 1 watt/1 meter, half space: 96.5 dB
  • Maximum Input Power:
    • 8 hours of 6 dB crest factor IEC 268 noise spectrum: 400 watts continuous
    • 2 hours of 6 dB crest factor pink noise, 50 Hz – 20 kHz, AES method: 500 watts continuous
    • Recommended Amplifier Power: 800 watts continuous 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 4" copper voice coils
  • Enclosure: 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
  • Dimensions (HWD) inches: 30 × 18.5 × 20.3
  • Dimensions (HWD) mm: 470 x 762 x 516
  • Net Weight: 83 lb (38 kg)
  • System Weight: 168 lb (77 kg)
  • Baffle Cut-Out: 58.75-inch × 32-inch
• MH-1075C:
  • Impedance: 8Ω
  • Sensitivity 1 watt/1 meter, half space:
    • Bi-amp: 105 dB
    • Tri-amp: MF 105 dB
    • HF 107.5 dB
  • Maximum Input Power:
    • 8 hours of 6 dB crest factor IEC 268 noise spectrum:
      • Bi-amp: 250 W continuous passive mid-high
      • Tri-amp: 275 W continuous
      • 80 W continuous
    • 2 hours of 6 dB crest factor pink noise, 50 Hz – 20 kHz, AES method: 350 watts continuous
    • Recommended Amplifier Power: 800 watts continuous maximum
  • Recommended Processing: 4th order LR crossover at 250 and 1700 Hz via QSC processor
  • Connectors: Barrier strip screw terminals accept up to #10 AWG stranded wire
  • Transducers: 10- high efficiency mid range, 1.5" (38mm) exit, 3" titanium diaphragm compression driver
  • Enclosure:
    • Tilt/Pan Bracket
    • ±10° vertical tilt
    • ±10° horizontal pan
  • Dimensions (HWD) inches: 30 × 39 × 20
  • Dimensions (HWD) mm: 990 x 762 x 508
  • Net Weight: 85 lb (39 kg)