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JBL ASB7128 2x18" Passive Subwoofer, 4000W Black


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Part of JBL’s AE Application Engineered Series, the ASB7128 is a high power, lightweight front-loaded vented subwoofer. It's equipped with two JBL 2269H Differential Drive® 18" woofers, which feature neodymium magnets and ultra robust composite cones for extra long life. The woofers also offer dual voice coils and dual gaps, plus JBL's exclusive Vented Gap Cooling™ technology.


  • (2) 2269H 18" Differential Drive dual voice coil dual gap, neodymium magnet transducers
  • 4000W continuous pink noise, 16000W peak power handling capacity
  • Peak-to-peak maximum excursion of 89 mm (3.5")
  • Parallel / Discrete switchable input mode
  • Large vent area for high output with low distortion
  • For ground-stacked or suspended applications in stand-alone arrays or in combination with other AE Series products


  • Frequency Range (-10 dB): 20 Hz – 1 kHz
  • Frequency Response (±3 dB): 25 Hz – 1 kHz
  • Transducer Power Rating: 4000W (16000W peak), 2 hrs
  • Input Modes: Drivers Parallel / Drivers Discrete
  • Long-Term System Power Rating: 2400W (9600W peak), 100 hrs
  • Maximum SPL (1 m): 25 Hz - 200 Hz, 135 dB-SPL cont avg (141 dB peak)
  • System Sensitivity: 25 Hz - 200 Hz, 99 dB SPL, 1W (2 V) @ 1 m
  • Nominal Impedance:
    • 4 Ω in Parallel-drive mode
    • 2 x 8 Ω in Discrete-drive mode
  • Low Frequency Driver: (2) JBL 2269H 460 mm (18") diameter, 100 mm (4") Dual Coil Dual Gap neodymium Differential Drive VGC drivers
  • Enclosure: Rectangular cabinet, 16 mm (5/8") exterior grade 11-ply birch plywood
  • Suspension Attachment: 16 points (4 top, 4 bottom, 4 each side), M10 threaded hardware
  • Finish: Black or white DuraFlex™
  • Grille: Powder coated 14 gauge perforated steel, with acoustically transparent black foam backing
  • Input Connector: NL4 Neutrik speakON® and CE-compliant covered barrier strip terminals. Barrier terminals accept up to 5.2 sq mm (10 AWG) wire or max width 9 mm (0.375") spade lugs. speakON in parallel with barrier strip for loop-through
  • Environmental Specifications: Mil-Std 810; IP-x3 per IEC529
  • Dimensions (H x W x D): 43" x 22" x 32.1" (1092 x 560 x 815 mm)
  • Net Weight: 158.5 lbs. (71.9 kg)
  • Optional Accessories: M10 x 35 mm forged shoulder eyebolts with washers

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