4642A Dual 460 mm (18 in.)Subwoofer System


4642A Dual 460 mm (18 in.) Subwoofer System

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


  Version Language Size Uploaded
4642a Spec Sheet
updated: 4月29日
    158.1 KB 4月29日
Full Line 2015 Catalog
updated: 1月11日
    11.7 MB 1月11日
4000 Series Declaration of Conformity
updated: 4月29日
    33.4 KB 4月29日
Cinema Sound - 4000 Series Declaration of Conformity
updated: 10月18日
    144.3 KB 10月18日
Tech Notes
Tech Note: Polarity Conventions
updated: 10月18日
    55.0 KB 10月18日
Information Documents
Cinema CD
updated: 10月18日
    21.9 MB 10月18日

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额定阻抗 4 ohms
Minimum Impedance 3.2 ohms
Power Handling Capability -
Continuous Pink Noise 1200 Watts
Continuous Program 2400 Watts
Peak Power 4800 Watts
Axial Sensitivity 50 Hz to 500 Hz; 101 dB, 1W @ 1m 40 Hz to 100 Hz; 100 dB, 1W @ 1m
净重量 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