Q-SYS LF-4215-F Flyable High Power Low-Frequency Cabinet - Dual 15-Inch 4-Ohm 99.5 Db Sensitivity
The LF-4215 dual 15 inch (381mm) low frequency enclosure is designed specifically for cinema applications. Meeting cinema requirements for extended low frequency response differentiates the LF-4215 from more conventional “rock-and-roll” woofer systems. The LF-4215 covers the frequency range from 35 Hertz to 1000 Hertz, depending upon the high frequency system requirements. Close Coupled Woofers (CCW), with its tight spacing between woofers, improves coupling and keeps coverage angles wide over a greater frequency range than more widely spaced designs.
Features:
- 1000W power for robust sound output
- Cinema-specific design for easy installation
- Offset terminal cups for quick setup
- Pre-installed rubber' for stability
- Tight driver spacing for improved sound coupling
- Wide coverage angles for enhanced audio experience
- Built for full, clear screen channel sound
- High-quality low-frequency components
Specifications:
- Frequency Range:
- ±3 dB: 38 – 1000 Hz
- -10 dB: 30 – 1200 Hz useable range
- Maximum Output: 134.5 dB SPL calculated peak
- Impedance: 4Ω nominal
- Maximum Input Power:
- 100 hours of 6 dB crest factor pink noise, 30 – 500 Hz: 800 watts
- 2 hours of 6 dB crest factor pink noise, 30 – 500 Hz, AES method: 1000 watts
- Sensitivity (half space / watt / 1 meter):
- 99.5 dB half space, 96.5 dB full space, 35 – 1000 Hz, 1 watt, 1 meter
- Transducers:
- Two 15" (381 mm) high-efficiency, low-frequency transducers featuring vented 4" (100 mm) copper voice coils
- High-excursion/low-distortion design, with extremely high-power handling, and low thermal and port compression
- Recommended Processing:
- Subsonic filter below 30 Hz, >18 dB per octave, maximum recommended crossover frequency is 1000 Hz
- QSC DSP configurations are available at www.qscaudio.com
- Parameters for alternative processing hardware are available upon request
- Nominal Coverage: 135° horizontal x 50° vertical at 500 Hz
- Connectors: Neutrik® speakON™ NL4, LF 1+, 1-, No Connection 2+, 2-
- Enclosure: Heavily braced 15 mm tour-grade plywood with 16 M10 load-rated attachment points
- Dimensions: (HWD) 40" x 31.5" x 19" (1016 mm x 800.1 mm x 482.6 mm)
- Shipping Weight: 142 lb / 64.4 kg
- Net Weight: 134 lb / 60.8 kg
- Frequency Range:
- ±3 dB: 38 – 1000 Hz
- -10 dB: 30 – 1200 Hz useable range
- Maximum Output: 134.5 dB SPL calculated peak
- Impedance: 4Ω nominal
- Maximum Input Power:
- 100 hours of 6 dB crest factor pink noise, 30 – 500 Hz: 800 watts
- 2 hours of 6 dB crest factor pink noise, 30 – 500 Hz, AES method: 1000 watts
- Sensitivity (half space / watt / 1 meter):
- 99.5 dB half space, 96.5 dB full space, 35 – 1000 Hz, 1 watt, 1 meter
- Transducers:
- Two 15" (381 mm) high-efficiency, low-frequency transducers featuring vented 4" (100 mm) copper voice coils
- High-excursion/low-distortion design, with extremely high-power handling, and low thermal and port compression
- Recommended Processing:
- Subsonic filter below 30 Hz, >18 dB per octave, maximum recommended crossover frequency is 1000 Hz
- QSC DSP configurations are available at www.qscaudio.com
- Parameters for alternative processing hardware are available upon request
- Nominal Coverage: 135° horizontal x 50° vertical at 500 Hz
- Connectors: Neutrik® speakON™ NL4, LF 1+, 1-, No Connection 2+, 2-
- Enclosure: Heavily braced 15 mm tour-grade plywood with 16 M10 load-rated attachment points
- Dimensions: (HWD) 40" x 31.5" x 19" (1016 mm x 800.1 mm x 482.6 mm)
- Shipping Weight: 142 lb / 64.4 kg
- Net Weight: 134 lb / 60.8 kg
