SC-424

4-Way Screen Channel Loudspeaker, Tri- or Quad-amp

Resources

SC-424 Cinema Surround Speaker Overview

The DCS SC-424 is a high-output cinema surround speaker designed for medium to large auditoriums requiring consistent coverage, controlled dispersion, and elevated sound pressure level (SPL) performance. Engineered for clarity and dynamic headroom, the SC-424 supports immersive surround channel applications in premium cinema environments.

Designed for Modern Cinema Audio Systems

Optimized for integration with contemporary cinema DSP and control platforms, the SC-424 delivers predictable acoustic performance across modern cinema sound system architectures. Its controlled dispersion and stable high-SPL output ensure consistent surround coverage in both new-build and retrofit cinema installations.

Applications

  • Premium Large Format (PLF) auditoriums
  • High-capacity multiplex surround channels
  • Immersive audio installations
  • Retrofit surround speaker upgrades

Features

  • Four-way selectable, tri or quad- amplified screen channel system
  • Unique HF/VHF diaphragm has less mass than traditional diaphragms resulting in exceptional dynamic range, extended high frequency response and lower distortion
  • LF-4215 is constructed of MDF and is heavily braced
  • Low-distortion waveguides provide highly articulate dialogue
  • Shallow depth (20-inch) facilitates installation
SPECIFICATIONS SC-424
Nominal Coverage 90° horizontal by +20 to -30° vertical
Frequency Range (-6 dB) 33 Hz–20 kHz
Active Crossover Frequencies 250, 1700, and 6000 Hz, 24 dB per octave
  LF-4215 MHV-1090
Impedance 4 ohms MF: 8 ohms
HF: 8 ohms
VHF: 8 ohms
Sensitivity 1 watt/1 meter, half space 99.5 dB  

Tri-amp
MF:105 dB
HF/VHF: 110 dB		 Quad-amp
MF: 105 dB
HF: 110 dB
VHF: 110 dB

 
Maximum Input Power 1    
8 hours of 6 dB crest factor
IEC 268 noise spectrum		 800 watts continuous  
2 hours of 6 dB crest factor pink
noise, 50 Hz–20 kHz, AES method		 1000 watts continuous  

MF: 275 W continuous
HF/VHF: 200 W continuous
 		 MF: 275 W continuous
HF: 100 W continuous
VHF: 100 W continuous

 
Recommended Amplifier Power 1600 watts continuous maximum MF: 800 W continuous
HF: 500 W continuous
VHF: 300 W continuous maximum
     
Recommended Processing Subsonic filter below 30 Hz, >18 dB per octave 4th order LR crossover at 250, 1700, and
6000 Hz via QSC processing
Connectors Barrier strip screw terminals accept up to #10 AWG stranded wire Barrier strip screw terminals accept up to #10 AWG stranded wire
Transducers Two 15-inch (381mm) high efficiency, extended bass woofer featuring a 4-inch copper voice coils MF: 10-inch high-effeciency, horn-loaded cone with phase plug
HF/VHF: coaxial neodymium compression driver with 3.5-inch (90 mm) HF diaphram and 1.75-inch (44 mm) VHF diaphram
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 Tilt/Pan Bracket
± 10° vertical tilt
± 10° horizontal pan
Dimensions (HWD) inches 36 × 30 × 20.3 39 × 30 × 20
Dimensions (HWD) mm 762 x 910 x 516 762 x 990 x 508
Net Weight 172 lb (78 kg) 84 lb (38.5 kg)
System Weight 256 lb (116 kg)
Baffle Cut-Out 76-inch × 32-inch

Specifications are subject to change without notice.