JBL ASB4128-WRC Medium Power Subwoofer with 2 x 18″ 2043H Drivers, WRC Weather Resistant Finish Speaker

JBL ASB4128-WRC is a medium power subwoofer system comprised of two 460 mm (18 in) low frequency drivers in a front-loaded, vented configuration.
Frequency Range(-10dB): 30 Hz – 1 kHz
Frequency Response(±3 dB): 40 Hz – 1 kHz
System Power Rating: 600 W (2400 W peak), 100 hrs
LF Driver: 2 x JBL 2042H 460 mm (18 in) drivers with 75 mm (3 in) voice coil
Nominal Impedance: 4 ohms in parallel-drive mode 2 x 8 ohms in discrete-drive mode
Maximum SPL(1m): 30 Hz – 100 Hz: 133 dB-SPL cont avg (139 dB peak)100 Hz – 500 Hz: 133 dB-SPL cont avg (139 dB peak)