JBL PRX718XLF 18-Inch Self-Powered Extended Low Frequency Subwoofer System

The 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 extreme efficiency and control.

APPLICATIONS

The 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 2278H 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.

  • 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
  • 20 mm threaded pole socket for solid, secure satellite speaker mounting.
  • 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
  • Power Rating : 1500 W
  • AC Power Input : 100V - 240V~ 50/60 Hz
  • Frequency Range (-10 dB) : 30 Hz - 103 Hz
  • Frequency Response (±3 dB) : 35 Hz – 87 Hz
  • Internal Crossover Frequency : 100 Hz DSP controlled 48 dB filter slope
  • Loop out Crossover Frequency : 120 Hz analog 24 dB filter slope
  • Maximum SPL : 134 dB peak
  • 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 2278H 460 mm (18 in) woofer
  • Enclosure : Rectangular, 18 mm, plywood
  • Suspension / Mounting : M20 threaded pole socket on top
  • 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) 690.372 mm x 523.24 mm x 723.9 mm (27.18 in x 20.60 in x 28.50 in)
  • Net Weight : 36.8 kg (81 lb.)
  • MPN : PRX718XLF
  • UPC : 50036904476

Audio MIDI Plus is committed to deliver the best experience for our customers. If for some reason you are not satisfied with your purchase, you may return it for a refund of the purchase price, an exchange or a store credit within 30 days from the ship date. 

In the unlikely event that you received a defective product, a wrong product, or damaged product, Audio MIDI Plus will replace it at no charge of any additional shipping cost. We will send you a prepaid label to return the item, and ship you a replacement. You will not incur any shipping charges. Please notify us of any of damaged, defective or misshipped products within 14 days.

After 30 days, you may request manufacturer warranty if your item malfunctions. Unless otherwise specified, Audio MIDI Plus is an authorized dealer for all the brands we represent.

How to request a return:
Please email us or call us to obtain a RMA number. All returns must be in a re-sellable condition and include all packing materials, accessories and paperwork. We may apply a restocking fee if the returned products fall into these following categories:

  • Missing original packaging, manuals, accessories, or any contents that was included
  • RMA number was not associated with the return
  • Items not in original like new condition

Please send all returns to:
Audio MIDI Plus Returns
3725 Saddle Drive,
Carlsbad, CA 92010

The following items are not returnable, unless received DOA, in which we will send a replacement:

  • Software
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Items that fall into the in mouth and in ear use category, such as mouthpieces, earphones, ear plugs, harmonicas, cannot be returned due to health regulations

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