JBL STX828S Passive Dual 18" Bass Reflex Subwoofer


Active or Passive Passive
System Type 18″ bass-reflex subwoofer
Frequency Range 32 to 250 Hz (-10 dB)
Frequency Response 37 to 120 Hz ±3 dB
Input Connection Type Switchable, +1/-1 or +2/-2
Internally selectable, parallel or discrete
Low Pass Crossover 80 Hz, 24 dB, octave LPF
High-Pass Filter 30 Hz, 24 dB, octave HPF
Power Handling Parallel:
2,000W continuous
4,000W program
8,000W peak
Maximum SPL 138 dB SPL peak
Sensitivity 99 dB SPL (1W @ 1 m)
Low Frequency Driver 2 x JBL 2242H 18″ (457 mm) Super Vented Gap Cooled woofer
Nominal Impedance Parallel: 4Ω
Discrete: 8Ω x 2
Enclosure Tuning Designed for Crown amplifiers and dbx DriveRack
Enclosure Rectangular, 0.71″ (18 mm) 13-ply birch/poplar laminate plywood
Handle or Carrying Type 4 side handles, 4 side grip points
Finish Black DuraFlex finish
Grille Powder coated, black, 14-gauge perforated steel with acoustical transparent cloth backing
Input Connectors 2 x Neutrik Speakon NL-4
Dimensions (H x W x D) 22.2 x 44.8 x 28.1″ (564 x 1,137 x 714 mm)
Weight 180 lb (81.6 kg)
Packaging Info
Package Weight 180 lb

*All specifications are subject to change without notice.