Overview
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-4315 is constructed of MDF and is heavily braced
Low-distortion waveguides provide highly articulate dialogue
Shallow depth (20-inch) facilitates installation
SPECIFICATIONS
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SC-434 | |||
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-4315 | MHV-1090 | ||
Impedance | 5.5 ohms | MF: 8 ohms HF: 8 ohms VHF: 8 ohms |
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Sensitivity 1 watt/1 meter, half space | 101 dB | Â
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Maximum Input Power 1 | Â | Â | ||
8 hours of 6 dB crest factor IEC 268 noise spectrum |
1200 watts RMS | Â | ||
2 hours of 6 dB crest factor pink noise, 50 Hz - 20 kHz, AES method |
1500 watts continuous | Â
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Recommended Amplifier Power | 2400 watts continuous maximum | MF: 800 W continuous HF: 500 W continuous VHF: 300 W continuous maximum |
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Recommended Processing | Subsonic filter below 30 Hz, >18 dB per octave | 4th order LR crossover at 280, 1700, and 6000 Hz via QSC processing |
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Connectors | Barrier strip screw terminals accept up to #10 AWG stranded wire | Barrier strip screw terminals accept up to #10 AWG stranded wire | ||
Transducers | Three 15-inch (381 mm) high efficiency, extended bass woofer featuring a 4-inch copper voice coils | MF: 10-inch high-effeciency, horn-loaded cone with pahse plug HF/VHF: coaxial neodymium compression driver with 3.5-inch (90 mm) HF diaphram and 1.75-inch (44 mm) VHF diaphram |
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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 |
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Dimensions (HWD) inches | 53 × 30 × 20.3 | 39 × 30 × 20 | ||
Dimensions (HWD) mm | 762 x 1344 x 516 | 762 x 990 x 508 | ||
Net Weight | 260 lb (118 kg) | 84 lb (38.5 kg) | ||
System Weight | 344 lb (155.5 kg) | |||
Baffle Cut-Out | 93-inch × 32-inch |