JBL High Power Subwoofer :-Ultra Long Excursion Very High Power Dual 18" Cinema Subwoofer The 5628 is a high power, lightweight front-loaded vented subwoofer enclosure housing two of JBL’s exclusive 2269H Ultra Long Excursion 18" Differential Drive® woofers. This woofer features neodymium magnet, dual voice coils and dual gaps, JBL’s exclusive Vented Gap Cooling™ and ultra robust composite cone for high excursion and extra long life. Woofer is capable of a peakto- peak maximum excursion of 89 mm (3.5"). FEATURES ∧ 2 x 2269H 18" Differential Drive® dual voice coil dual gap, neodymium magnet transducers 4000 watts continuous pink noise, 16000 watts peak power handling capacity Ultra Long Excursion Large vent area for high output with low distortion SPECIFICATIONS ^ Frequency Range (-10 dB) 18 Hz - 1.63 kHz (2π) / 19 Hz - 1.75 kHz (4π) Frequency Response (± 3 dB) 24 Hz - 155 Hz (2π) / 27 Hz - 1.5 kHz (4π) Input Modes Drivers Discrete Transducer Power Rating 4000 W (16000 W peak), 2 hrs. Long-Term System Power Rating 2400 W (9600 W peak), 100 hrs Maximum SPL (1m) 134.5 dB (peak 140.5 dB) Half-space 128.5 dB (peak 134.5 dB) Full-space System Sensitivity 95 dB @ 2.00 V (1 W) Nominal Impedance 4 ohms in parallel-drive mode 2 x 8 ohms in discrete-drive mode Low Frequency Driver 2 x 2269H, 460 mm (18 in) dia., 100 mm (4 in) Dual Coil Dual Gap neodymium Differential Drive®, VGC™ drivers Enclosure 19 mm (3/4 in) particle board with 25 mm (1 in) baffle and back panel. Extensive bracing on all panels. Input Connector (2x) +/-Push Terminals for up to 12 AWG wire