JBL ASB7128 Dual 18″ Front-Firing Subwoofer (White)

JBL ASB7128 Dual 18″ Front-Firing Subwoofer (White)


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SKU: JBLASB7128WH Category:
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JBL ASB7128-White

JBL ASB7128 is a professional-quality passive subwoofer that provides strong, reliable bass performance for a variety of applications. The wooden cabinet houses a pair of ultra long-excursion 18″ Differential Drive dual voice coil drivers with large neodymium magnets for a long performance life. The subwoofer has switchable parallel/discrete input modes for excellent versatility.

Key Features

  • Switchable parallel and discrete input modes for excellent versatility
  • 14-gauge steel grille is lined with acoustically transparent foam to protect the driver
  • Large vent area provides high output with low distortion
  • 16 threaded M10 attachment points provide versatile mounting options
  • The power rating of 4000W (16000W Peak)


Driver 2 x 18″ (460 mm) Differential Drive VGC Woofers with 4″ Dual Coil Dual Gap Neodymium Magnets
Crossover Not Specified by Manufacturer
Frequency Range 20 Hz – 1 kHz
Impedance 4 ohms (Parallel),2 x 8 ohms (Discrete)
Maximum Power Handling 4000 W (16000 W Peak), 2 Hours,2400 W (9600 W Peak), 100 Hours
Connectors 1 x NL4 Neutrik Speakon Input,1 x Barrier Strip Terminal
Enclosure Material
11-Ply Birch Plywood with DuraFlex Finish
14-Gauge Steel Grille with Acoustically Transparent Foam
Maximum Sound Pressure Level (SPL) 135 dB
Controls and Indicators None
Shielded No
Dimensions (HxWxD) 43 x 22 x 32.1
Weight 158.5 lb (71.9 kg).

Additional information

Weight 173 lbs