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JBL JRX118SP – No Longer Available

Powered 18” portable subwoofer system with 500 watt peak and 300 watt continuous power

Product Description

For those who prefer the simplicity of a self-powered subwoofer, there's the JBX JRX118SP.


  • The rugged enclosure is constructed from 19 mm (.75") MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for durability and improved lowfrequency performance - the enclosure is covered in black carpet
  • Heavy duty, all steel handles are used
  • A top mounted, cast aluminum 35 mm pole mount receptacle can receive an optional SS3BK pole to facilitate use of the JRX118SP as a base for a mid-high speaker cabinet
  • Built-in 500 W (peak), 300 W (continuous) amplifier
  • Controls, connectors, and indicators are clearly labeled with large, highcontrast graphics for easy operation in poorly lit environments
  • Integral, preset limiter prevents clipping distortion
  • An LED illuminates to indicate that limiting is taking place
  • Line-level stereo inputs are summed before being sent to the subwoofer's internal amplifier - this feature allows the JRX118SP to operate in stereo systems using a single subwoofer
  • An integral crossover also provides balanced, line-level, stereo, highpassed outputs to feed powered satellite speakers or an external amplifier for passive satellite
  • A speaker-level, .25" TS phone jack is provided- this input is useful in applications, such as those employing powered mixers, in which it is more practical to bring a full-range, speaker-level signal to the subwoofer amplifier


  • Power rating: 300 W / 500 W
  • Frequency range: 38 Hz - 300 Hz (-10 dB)
  • Dimensions (H x W x D): 597 mm x 516 mm x 597 mm (23.5 x 20.3 x 23.5")
  • Frequency response: 55 Hz - 300 Hz (±3 dB)
  • Maximum SPL: 123 dB
  • Weight: 40.4 kg (89 lb)
  • Low frequency driver: JBL 2043-G
  • Input connectors: XLR/M (x2) (line level, balanced): .25" TS phone jack (x1) (speaker level)
  • Output connectors: XLR/F (x2) (Selectable, Thru or High Pass)

Product Specifications

Condition New
Active or Passive Passive

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How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.