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The JBL Model 4642A is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies. The 4642A is ideal for low-frequency augmentation of either analog or digital soundtracks in motion picture theaters and for general sound reinforcement applications.




  • 1200 Watts Continuous Pink Noise, 2400 Watts Continuous Program Power Handling
  • Usable response to 22 Hz (-10 dB, no EQ), flat to 22 Hz (-3 dB) with External EQ
  • 2241H VGCTM Vented Gap Cooled Drivers – High Sensitivity – Low Power Compression – High Maximum-SPL Capability – Low 2nd and 3rd Harmonic – Distortion – Symmetrical Field Geometry SFGTM – Magnet Structure – Long Excursion Capability
  • proved by Lucasfilm, Ltd. for THX installations

JBL 4642A 4 ohm, Dual 18" Bass Reflex Subwoofer System

  • Rated Impedance 4 ohms
    Minimum Impedance 3.2 ohms
    Power Handling Capability -
    Continuous Pink Noise 1200 Watts
    Continuous Program 2400 Watts
    Peak Power 4800 Watts
    Output Capability -
    Axial Sensitivity 50 Hz to 500 Hz; 101 dB, 1W @ 1m
    40 Hz to 100 Hz; 100 dB, 1W @ 1m
    Net Weight 98 kg (216 lbs.)
    Dimensions H x W x D 762 mm x 1219 mm x 610 mm
    30 in x 48 in x 24 in
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