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JBL PRX718XLF Powered 18 Inch Subwoofer (Discontinued)
Part # PRX718XLF
Model # PRX718XLF

The JBL PRX718XLF subwoofer was designed to provide sub bass frequencies with accuracy and power and performs with extreme efficiency and control.

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Description

Details

The JBL PRX718XLF extended low frequency subwoofer was designed and engineered to provide sub bass frequencies with accuracy and power. Used as a single sub in a sub/sat system or in multiples as part of a scalable, large format sound reinforcement system, the PRX718XLF performs with exceptional efficiency and control. The subs are stackable and light-weight ensuring quick set-ups and tear-downs. And due to their rugged construction are perfect for AV rental inventories. With a pole receptacle (that accepts a SS4-BK or SS4-BK24) on the top panel and integrated stereo pass-thru this is the most powerful low-frequency complement to the PRX full-range systems. The addition of a polarity reverse option further enables system optimization.

The PRX718XLF is a high performance self-powered subwoofer system. The PRX718XLF is comprised of a powerful 2278G Differential Drive® dual voice-coil and magnetic gap, woofer driven by a 1500 Watt Class-D power amplifier. Sophisticated DSP is at the core of a fully featured input section, providing user selectable cross-over functionality, polarity optimization, protection, dynamic limiting and discrete component optimization.
Features

Features

  • 134 dB peak SPL
  • 18" Differential Drive® low-frequency driver for low-distortion and higher SPL
  • Efficient Class-D amplifier technology
  • DSP Input limiter circuit, crossover, dynamic limiting, component optimization, selectable system EQ
  • Integrated stereo pass-thru, with selectable HP filter, and polarity reverse
  • 2 x XLR-1/4" combination inputs, with 2 x XLR loop-thru
  • Pole receptacle accepts a SS4-BK or SS4-BK24 on the top panel
  • Multiple handles with comfort rubber grips for easy transport
  • Lightweight poplar plywood cabinets made structurally sound with tongue and groove joints and protected by JBL’s tour proven DuraFlex™finish
  • Cloth backed, dent-resistant 16 gauge steel grilles
Specification
Power Rating1500 W
Frequency Range (-10 dB)30 Hz - 103 Hz
Frequency Response (±3 dB)35 Hz – 87 Hz
Internal Crossover Frequency90 Hz DSP controlled 48 dB filter slope
Loop out Crossover Frequency120 Hz analog 24 dB filter slope
Maximum SPL134 dB peak
Dynamic Control (Input)dbx Type IV™ limiter circuit
Input Impedance20K Ohms (balanced)
PolarityNormal or reverse polarity
LF Driver1 x JBL 2278G 460 mm (18 in) woofer
EnclosureRectangular, 18 mm, plywood
Suspension / MountingM20 threaded pole socket on top
Transport2 x injection molded handles with backing cup
FinishObsidian DuraFlex™ finish
GrillePowder coated, Obsidian, 16 gauge perforated steel with acoustical transparent black cloth backing
Input ConnectorsTwo Balanced female XLR/ 1/4" combo connectors
Output ConnectorsTwo balanced male XLR connectors
Dimensions (H x W x D)27.18" (690.37 mm) x 20.6" (523.24 mm) x 28.5" (723.9 mm)
Net Weight81 lbs (36.8 kg)
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