JBL 4642A
Dual Sub-Woofer System

OUR PART #  4642A

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The 4642A is a high quality subwoofer system, featuring an advanced technology 460 mm (18"), 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.

NOTE: Consult the product page for more information on the 4642A's 2241H transducer.

Key Features:

  • 1200 Watts Continuous Pink Noise, 2400 WattsContinuous Program Power Handling
  • Usable response to 22 Hz (-10 dB,no EQ), flat to22 Hz (-3 dB) with External EQ
  • 2241H VGC (Vented Gap Cooled) Drivers
    – High Sensitivity
    –  Low Power Compression
    –  High Maximum-SPLCapability
    –  Low 2nd and 3rd Harmonic Distortion
    – Symmetrical Field Geometry (SFG) Magnet Structure
    –  Long ExcursionCapability
  • Approved by Lucasfilm, Ltd. for THX®installations


  • Low Frequency Drivers: (2) 2241H
  • Frequency Range: 22 Hz - 500 Hz (-10dB)
  • Power Capacity (Continuous Pink Noise): 1200Watts
  • Power Capacity (Continuous Program): 2400Watts
  • Sensitivity: 101 dB SPL (1W, 1m,3.3ft.)
  • Crossover Frequency: 80-150 Hzrecommended
  • Nominal Impedance: 4 Ohms
  • Dimensions (HxWxD): 30" x 48" x 24" (762 x 1219 x610 mm)
  • Net Weight: 98 kg (216 lb)

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Full Compass is a national leader in Professional Audio, Professional Video, A/V, Lighting and Musical Instrument sales. Since 1977, our goal has been to provide the best possible value with exceptional customer service. We offer over 700 top equipment brands including, Shure, Yamaha, Panasonic, Sony, JBL, Sennheiser, Canon, QSC, Audio-Technica, Crown and much more. We also provide services such as computer systems integration, lighting design, and rentals (rentals available in Wisconsin only). Full Compass is an authorized service center and parts distributor for most of the major manufacturers we carry.