JBL ASB4128 (JBL Power Subwoofer)
Medium Power Subwoofer 2 x 18" 2042H Drivers
The 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. Order this power subwoofer speaker system today!

FEATURES
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.

SPECIFICATIONS
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

JBL Professional ASB4128 (JBL ASB-4128)