JBL ASB4128 Medium Power Dual 18-Inch Subwoofer

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Write a review Q&A SKU: ASB4128 Solotech ID#: 63180
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Regular price $3,450.00 USD
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JBL ASB4128 Medium Power Dual 18-Inch Subwoofer

Medium Power Subwoofer 2 x 18" 2042H Drivers

ASB4128 is a medium power subwoofer system comprised of two 460 mm (18 in) low frequency drivers in a front-loaded, vented configuration. The deep, rectangular cabinet allows for extended low frequency bandwidth with minimum frontal profile.


  • Large vent area for high output.
  • Parallel/Discrete Switchable.
  • See Array Guide on applications such as performing arts facilities, theatrical sound design, auditoriums, houses of worship, live clubs, dance-clubs/discotheques, sports facilities and themed entertainment venues.


  • Frequency Range: 30 Hz – 1 kHz (-10 dB)
  • Frequency Response: 40 Hz – 1 kHz ( ± 3 dB)
  • Input Modes: Drivers Parallel / Drivers Discrete
  • Transducer Power Rating (AES): 1000 W (4000 W peak), 2 hrs
  • Long-Term System Power Rating (IEC): 600 W (2400 W peak), 100 hrs
  • Maximum SPL: 30 Hz – 100 Hz: 133 dB-SPL cont avg (139 dB peak) 100 Hz – 500 Hz: 133 dB-SPL cont avg (139 dB peak)
  • System Sensitivity: 30 Hz – 100 Hz: 103 dB 100 Hz – 500 Hz: 103 dB
  • Nominal Impedance: 4 ohms in parallel-drive mode 2 x 8 ohms in discrete-drive mode


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