J. P. Leisure Ltd. Unit 1, Hillside Road, Hele, Ilfracombe, Devon, EX34 9QS, United Kingdom.

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JBL ASB4128 - Medium Power Subwoofer 2 x 18" 2043H Drivers

JBL ASB4128 - Medium Power Subwoofer 2 x 18

JBL ASB4128 - Medium Power Subwoofer 2 x 18" 2043H Drivers

Price Each 2,245.47 Exc VAT or (2,694.56 Inc VAT at 20%)


Ref: JP3353


Click Here For PDF User Manual

JBL 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
  • Available in Black or White
  • 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 dB100 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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