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18" Passive Subwoofer System

SRX818S is a single 18” subwoofer for concert, touring, or installed use. Featuring a standard M20 pole cup for use with top boxes, indexing feet for stacking in both the standard and cardioid position, and a 136dB max SPL, the SRX818S is an ideal solution for musicians, bands, and DJs, concert use, public speaking, or installations such as performance venues, corporate spaces, educational facilities or houses of worship. Tunings and presets are available for Crown ITech HD.



  • Premium JBL Transducers
  • Rugged, versatile enclosures
  • Tunings available for Crown amps and dbx signal processors
  • Fully supported in Audio Architect
  • Power Handling: 2400W Peak, 1200W Program, 600W Continuous
  • Frequency Range: 28Hz-150Hz
  • Frequency Response: 45Hz-150Hz
  • Max SPL: 129dB (Peak)
  • Amplification options: Passive
  • 2279 LF 8 Ohm 18” Woofer




  • Live performance systems.
  • Mobile and fixed DJ systems.
  • Sound system rental and tour.
  • Permanent installations.

JBL SRX818S is a single 18" subwoofer for concert, touring, or installed use

$1,963.48 Regular Price
$1,579.00Sale Price
  • System Type Passive 18”, subwoofer system
    Maximum SPL Output 123dB (Continuous), 129dB (Peak)
    Frequency Range (-10dB) 28hz - 150hz
    Frequency Response (-3 dB) 45hz - 150hz
    Sensitivity 95dB
    System Power Rating 2400W Peak , 1200W Program, 600W Continuous
    Nominal Impedance 8 Ohm
    Inputs NL4 Input, NL4 Loop-thru (+/-1 or +/-2 Selectable)
    Operational Modes Passive
    LF Driver 2279H
    Crossover Frequency 80hz
    Enclosure 18mm Duraflex coated plywood
    Suspension/Mounting M20 Threaded Pole Mount
    Casters Accepts JBL WK-4S Kit
    Handles 4
    Finish Obsidian Duraflex™ finish
    Grille Powder coated, Obsidian, 14-gauge perforated steel with acoustically transparent black cloth backing
    Dimensions (H x W x D) 683mm x 684mm x 575mm (26.89in x 26.92in x 22.62in)
    Weight 78.0 lbs (35.4kg)
    Shipping Weight 88 lbs (40.2kg)
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