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JBL PRX715XLF 15" Self-Powered Extended Low Frequency Subwoofer System

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JBL PRX715XLF 15" Self-Powered Extended Low Frequency Subwoofer System

JBL PRX715XLF Sub-Woofer Powered System

  • The PRX715XLF 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 PRX715XLF 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 PRX715XLF is a high performance self-powered subwoofer system. The PRX715XLF is comprised of a powerful 2275H 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.
  • All PRX700 cabinets are built from a combination of 25mm (on the top and bottom for added rigidity) and 18mm, strong, light-weight poplar plywood made structurally sound with tongue and groove joints. All PRX700 Series cabinets are protected by JBL’s tour proven DuraFlex™ finish. Grilles are made from dent-resistant 16 gauge steel and handles are made from light-weight glass-filled nylon for added strength and durability.
  • The amplifier input panel offers stereo inputs with XLR or ¼ inch jack compatibility. A user selectable crossover ensures a smooth transition to full-range system connected to the stereo outputs. Signal present and limiter lights indicate the system status and assist in setting the optimum level via the level control knob.


  • 131 dB peak SPL
  • 15" 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-¼" 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
  • Integrated M10 suspension points for easy setup
  • 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


Power Rating : 1500 W
Frequency Range (-10 dB) : 37 Hz - 113 Hz
Frequency Response (±3 dB) : 44 Hz – 91 Hz
Internal Crossover Frequency : 90 Hz DSP controlled 48 dB filter slope
Loop out Crossover Frequency : 120 Hz analog 24 dB filter slope
Maximum SPL : 131 dB
Signal indicators : Limit: Yellow LED indicates peak output has been reached and dsp limiter is acting
Signal: Green LED indicates signal present
Power/Standby : Blue indicates system has power and ready to pass audio, Red indicates system has power but is in a power saving mode and will not pass audio.
Dynamic Control (Input) : dbx Type IV™ limiter circuit
Input Impedance : 20K Ohms (balanced)
Polarity : normal or reverse polarity
LF Driver : 1 x JBL 2275H 15 in woofer
Enclosure : Rectangular, 18 mm & 25mm, plywood
Transport : 2 x injection molded handles with backing cup
Finish : Obsidian DuraFlex™ finish
Grille : Powder coated, Obsidian, 16 gauge perforated steel with acoustical transparent black cloth backing.
Input Connectors : Two Balanced female XLR/ 1/4" combo connectors
Output Connectors : Two balanced male XLR connectors.
Dimensions (H x W x D) : 547.1 mm x 445.0 mm x 580.0 mm
(21.54 in x 17.52 in x 22.48 in)
Net Weight : 25.4 kg (56 lb.)
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