SC-424-8

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


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") facilitates installation
  • Identical to SC-424 except with 8 ohm LF
SPECIFICATIONS
SC-424-8
Nominal Coverage 90° horizontal by +20 to -30° vertical
Frequency Range (-6 dB) 33 Hz–20 kHz
Active Crossover Frequencies 280, 1700, and 6000 Hz, 24 dB per octave
  LF-4215-8 MHV-1090
Impedance 8 ohms MF: 8 ohms
HF: 8 ohms
VHF: 8 ohms
Sensitivity 1 watt/1 meter, half space 99.5 dB at 2.83 V rms
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 280, 1700, and
6000 Hz via QSC DCM, DCP or QSControl.net
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" (381 mm) high efficiency, extended bass woofer featuring a 4" copper voice coils MF: 10" high-effeciency, horn-loaded cone with pahse plug
HF/VHF: coaxial neodymium compression driver with 3.5" (90 mm) HF diaphram and 1.75" (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" × 32"

1 Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz - 20 kHz band limiting, 6 dB signal crest factor.

Specifications are subject to change without notice.