JBL JRX118SP

JRX 118SP

The JRX118SP is an 18 inch directradiating powered subwoofer. A built-in 500 watt (peak)
amplifier accepts stereo or mono line level inputs via balanced, XLR connectors as well as
single channel speaker level input via a 1/4 inch phone jack. Integral signal processing includes
a stereo crossover and limiting for the internal amplifier. A pair of XLR output connectors may be
used to pass the input signals to another system or to send a high-passed, line-level stereo signal
to a pair of powered, full-range speakers.

The JRX118SP is designed to supplement and extend the low frequency performance of full-range
systems in live sound and music playback applications. It is an excellent choice for use with
powered full-range speakers or in systems using powered mixers.

• The rugged enclosure is constructed from 19 mm (3/4 in) MDF (Medium Density Fiberboard) 

• Heavy duty, all steel handles are used.
• A top mounted, cast aluminum 35 mm pole mount receptacle can receive an optional
  

• Built-in 500 watt (peak), 300 watt (continuous) amplifier. Controls, connectors, and
  

• Integral, preset limiter prevents clipping distortion. An LED illuminates to indicate that
  

• Line-level stereo inputs are summed before being sent to the subwoofer’s internal
  

• An integral crossover also provides balanced, line-level, stereo, highpassed outputs
  

• A speaker-level, 1/4" TS phone jack is provided. This input is useful in applications,
  

• System Type: Powered, 18" compact subwoofer
• Frequency Range (-10 dB):1 38 Hz - 300 Hz
• Frequency Response (±3 dB):1 55 Hz - 300 Hz
• Nominal Impedance: 4
• Rated Maximum SPL2: 123 dB peak, @1 m (3.3 ft) at 500 watts
• Dimensions (H x W x D): 605 mm x 508 mm x 592 mm (23.8 in x 20.0 in x 23.3 in)
• Net Weight: 40.4 kg (89 lb) including casters
• Shipping Weight: 45 kg (99 lb)
• LF Driver: 2043-G
• Amplifier Power:
  Continuous: 300 watts with < 0.2% THD
  Peak: 500 watts
• Input Connectors:
  2 x XLR/F, balanced, line level
  1 x 1/4" phone jack, speaker level
• Input Impedance: Nominally 20k Ohms, electronically balanced
• Input Sensitivity: 0.5 Vrms for 300 watt output (SUB LEVEL control fully clock-wise)
• Maximum Input Level: INPUTS A & B: +4 dBu (nominal), +22 dBu (max.),
  

• Output Connectors: 2 x XLR/M
• Crossover: LPF: 100 Hz, 24 dB / Oct
• Infrasonic filter: 25 Hz, 18 dB / Oct
• Required AC Mains: 50/60 Hz (North American units are 60 Hz only); 120 and
  

• AC Line Current:
  120 volts: 1.4 A at ? power with sine-wave input, 3.6 A at max. power with
  
• pink noise input
  230-240 volts: 0.7 A at ? power with sine-wave input, 1.8 A at max. power
  
• with pink noise input
• Power Consumption at Idle: No more than 20 watts

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