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JBL ASB4128 Dual 18 Inch Installation Subwoofer (Black)


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Dale #:JBL-ASB4128

Availability: Usually ships in 5 - 10 Days

This item usually ships within 5-10 days after your order is placed. Your payment will be charged after completing checkout.
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  • 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 Range30 Hz – 1 kHz (-10 dB)
    Frequency Response40 Hz – 1 kHz ( ± 3 dB)
    Input ModesDrivers 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 SPL30 Hz – 100 Hz: 133 dB-SPL cont avg (139 dB peak)
    100 Hz – 500 Hz: 133 dB-SPL cont avg (139 dB peak)
    System Sensitivity30 Hz – 100 Hz: 103 dB
    100 Hz – 500 Hz: 103 dB
    Nominal Impedance4 ohms in parallel-drive mode 2 x 8 ohms in discrete-drive mode
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