J. P. Leisure Ltd. Unit 1, Hillside Road, Hele, Ilfracombe, Devon, EX34 9QS, United Kingdom.

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JBL 4645C Single 460 mm (18 in.) Subwoofer System

JBL 4645C Single 460 mm (18 in.) Subwoofer System

JBL 4645C Single 460 mm (18 in.) Subwoofer System

Price Each 1,051.80 Exc VAT or (1,262.16 Inc VAT at 20%)


Ref: JP3251


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The JBL 4645C is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducer mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies. The 4645C is ideal for low-frequency augmentation of either analog or digital soundtracks in motion picture theaters and for general sound reinforcement applications.


  • 800 Watts Continuous Pink Noise, 1600 Watts Continuous Program
  • Power Handling Usable response to 22 Hz (-10 dB, no EQ), flat to 22 Hz (-3 dB) with External EQ
  • 2242H SVGTM Super Vented Gap Cooled Driver
  • High Sensitivity
  • Minimal Power Compression
  • Highest Maximum-SPL Capability
  • Extremely Low 2nd and 3rd Harmonic Distortion
  • Symmetrical Field Geometry SFGTM Magnet Structure
  • Extended Excursion Capability
  • Approved by Lucasfilm, Ltd. for THX installations


Rated Impedance 8 ohms
Minimum Impedance 7.2 ohms
Power Handling Capability -
Continuous Pink Noise 800 watts
Continuous Program 1600 watts
Peak Power 3200 watts
Output Capability -
Axial Sensitivity 50 Hz to 500 Hz; 99 dB, 1W @ 1m 40 Hz to 100 Hz; 97 dB, 1W @ 1m
Power Compression -
At -10 dB power (80 W) 0.6 dB
At -3 dB power (400 W) 2.0 dB
At rated power (800 W) 3.3 dB
Net Weight 63 kg (138 lbs.)
Dimensions H x W x D 1010 mm x 674 mm x 450 mm 39_ in x 26??? in x 17_ in

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