4181

Single 460 mm (18")Cinema Subwoofer System

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Single 460 mm (18") Cinema Subwoofer System

JBL 4181 is a high quality subwoofer system, featuring an advanced technology 460mm (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 either analog or 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 26 Hz (-10 dB), 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
  • Cost effective movie sound track sound reproduction for basic cinema

Downloads

  Version Language Size Uploaded
Spec Sheets (Pdf)s
4181 Spec Sheet - ENG
updated: Oct 22, 2020
    832 KB Oct 22, 2020
4181 Spec Sheet - CN
updated: Oct 22, 2020
    856 KB Oct 22, 2020

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Specifications

Rated Impedance 8 ohms
Minimum Impedance 5.6 ohms
Power Handling Capability Continuos Pink Noise: 500 W Continuous Program: 1000 W Peak Power: 2000 W
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: 25 W; Two Modules: 100 W; Three Modules: 225 W; Four Modules: 400 W
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
Distortion 2nd harmonic: < 3% 3rd harmonic: < 2%
System Polarity EIA Standard. Positive voltage to RED terminal produces forward cone motion.
Input Connectors Color-coded binding posts
Nominal Diameter 460 mm (18 in)
Materials and Finish 15mm MDF. Extensive bracing on all panels. Vinyl laminated.
Enclosure Tuning Frequency 30 Hz
Net Internal Volume 255 liters (9 cu. ft)
Dimensions (H x W x D) 1100 mm x 640 mm x 450 mm (43.3 in x 25.2 in x 17.75 in)
Net Weight 44 kg (96 lbs.)
Shipping Weight (ea) 50 kg (109 lbs.)

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