JBL ASB4128-WH Dual 18" Subwoofer (White)

Dual 18" Subwoofer, White 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.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