18IN BSS REFLEX THEATRE SUBWOOFER

4181
SPECIAL ORDER  
Out of stock, please contact JPRO for delivery ETA
2/3/5 Years WARRANTY
Single 460 mm (18") Cinema Subwoofer System
The JBL Model 4181 is a high quality subwoofer system, featuring a 460 mm (18 in), low frequency transducer mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible ...
Single 460 mm (18") Cinema Subwoofer System
The JBL Model 4181 is a high quality subwoofer system, featuring a 460 mm (18 in), low frequency transducer mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies. The 4181 is ideal for low-frequency augmentation of digital soundtracks in motion picture theaters and for general sound reinforcement applications.

FEATURES
  • 500 Watts continuous pink noise, 1000 Watts continuous program power handling
  • Usable response to 28 Hz (-10 dB, no EQ), flat to 34Hz (-3 dB) with External EQ
  • Dual coils in parallel, vented cooling driver
  • High Sensitivity
  • Low Power Compression
  • High Maximum SPL Capability
  • Low 2nd and 3rd Harmonic Distortion
  • Long Excursion Capability

SPECIFICATIONS
  • Rated Impedance 8 Os
  • Minimum Impedance 5.6 Os
  • Continuous Pink Noise 500 Watts
  • Continuous Program 1000 Watts
  • Peak Power 2000 Watts
  • Axial Sensitivity 50 Hz to 500 Hz; 101 dB, 1W @ 1m
  • 40 Hz to 100 Hz; 99 dB, 1W @ 1m
  • Half-Space Reference: Efficiency Single Module: 5%
  • Two Modules: 10%
  • Three Modules: 15%
  • Four Modules: 20%
  • Max. Continuous Acoustical Power Output Single Module: 25W
  • Two Modules: 100W
  • Three Modules: 225W
  • Four Modules: 400W
  • Maximum Continuous SPL @ 1 meter Single Module: 126 dB
  • Two Modules: 132 dB
  • Three Modules: 136 dB
  • Four Modules: 138 dB
  • Maximum Peak SPL @ 1 meter Single Module: 132 dB
  • Two Modules: 138 dB
  • Three Modules: 142 dB
  • Four Modules: 144 dB
  • Frequency Response: Lower Frequency Limits (no EQ):
  • -10 dB: 28 Hz
  • -3 dB: 40 Hz
  • Lower Frequency Limits (with EQ):
  • -10 dB: 26 Hz
  • -3 dB: 34 Hz
  • Recommended Crossover Frequencies: High-pass: 20 Hz, 24 dB/octave or greater
  • Low-pass: 80 Hz to 150 Hz, 12 dB/octave or greater

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