JBL PRX818XLFW 18'' Active PA Subwoofer

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£999.00 (including VAT @ 20%)

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Can be delivered to you on: 5th December 2016
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30 day money back guarantee included

30 day money back guarantee included

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Optional: 5 year warranty: £61.84
(Includes 90 day money back guarantee)


The product price includes a one year warranty and 30 day money back guarantee.

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Product Ref: 78891

  • Built-In Wi-Fi and Free PRX Connect App for iOS and Android
  • JBL 2278G Differential Driver 18'' Low-Frequency Woofer
  • dbx Type IV Limiter Ensures Clear, Accurate Sound at High Volumes
  • XLR and 1/4'' Inputs, plus XLR Mix Output
  • Highly Efficient Class-D Amplifier Delivers Enormous Power

JBL PRX818XLFW 18'' Active PA Subwoofer


The JBL PRX818XLFW 18'' Active PA Subwoofer is an extended low-frequency subwoofer that is perfect for expanding the capabilities of any JBL PRX800W full-range PA speaker. The built-in Wi-Fi provides you with complete control over volume levels, an 8-band parametric EQ and speaker delay, from anywhere in the venue - just download the free PRX Connect app for your iOS or Android device. The highly efficient class-D amplifier is combined with a JBL 2278G 18'' woofer which delivers outstanding sound with deep, rich bass responses and reliable performance.

Product Ref: 78891

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Buy on finance from £27.52 per month Finance from £27.52 per month  

  • 15.9%
  • £34.86
  • £1,254.96
Pay by Finance

To make it as easy as possible for you to get the gear you want, we offer a range of instant finance options. If you spend £250 or more online, you can choose to pay over 48, 36 or 24 months. The majority of decisions are given instantly, so you could get your new gear sooner than you thought!

Representative Example

To help you understand how our finance options work, the examples below are based on a total order value of £250:

Finance APR Deposit to Pay Payments Total Payable
Classic Credit 48 Months 14.9% 14.9% No Deposit 48 months: £6.83
Final payment: £6.83
No settlement fee
Classic Credit 36 Months 15.9% 15.9% No Deposit 36 months: £8.65
Final payment: £8.65
No settlement fee
Classic Credit 24 Months 18.9% 18.9% No Deposit 24 months: £12.41
Final payment: £12.41
No settlement fee

How to Apply

Applying for finance couldn't be easier - if your order totals £250 or more, simply proceed through the checkout as normal, then select Pay by Finance on the payment page, then click the orange APPLY FOR INSTANT FINANCE button. This will start your application with V12 Retail Finance, our finance partner, and completing this form should take approximately 10 minutes.

You should get an instant answer on whether your application has been successful, though in some rare cases V12 may need to look at the application in more detail.

Please note: This is only available on orders placed via the website and is not available in store or via phone currently.

Full Description

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PRX800 Series

PRX800W is the first series of PA systems in its class to offer complete wireless control. The innovative PRX Connect app for iOS and Android devices connects wirelessly to each unit in the system simultaneously, providing you full control over the sophisticated built-in DSP. Offering control over an 8-band parametric EQ, speaker delay up to 50ms, mute, gain and much more, the PRX Connect allows you to achieve the perfect sound faster than ever before. This also provides you with the ability to walk around the venue during sound check and fine-tune the speakers to ensure optimal sound quality. PRX Connect also makes it easy to configure shows offline and save presets for instant recall in the future.

Next-Generation Technology

The JBL PRX818XLFW features the patented JBL Differential Drive® technology which reduces magnet mass and increases the power handling capabilities, while the updated tuning delivers flat frequency responses and smooth off-axis behaviour. At the core of the input section is the incredibly sophisticated and powerful DSP, which features user selectable system EQ, protection, input sensitivity selection, cross-over functionality, dynamic limiting and discrete component optimisation.

Professional Quality

All PRX800 cabinets are built from a combination of 25mm (on the top and bottom for addition rigidity) and 18mm lightweight plywood, with incredibly strong tongue and groove joints. Additionally, the cabinets are finished with JBL's tour-proven DuraFlex™ finish which provides additional durability. The grilles are made from a dent-resistant 16 gauge steel while all M10 mounting points are constructed from 14 gauge steel and have been tested with a yield-strength of 1000 lbs each.

''With the PRX800W family, we're excited to give bands and DJs more control over their live sound than ever before. Users can now shape their sound wirelessly, right from the palm of their hand, ensuring the best possible listening experience for themselves and their audiences. PRX800W is by far our most advanced and portable PA, and represents the next generation in smart live sound reinforcement.'' - Craig Lambrecht, Retail & Recording Solutions, HARMAN Professional Solutions.



  • Built-in Wi-FI for wireless control of your system from anywhere in the venue
  • Free PRX Connect mobile app for iOS and Android provides wireless control over volume levels, 8-band parametric EQ and up to 50ms of speaker delay to fine-tune your sound
  • Class-leading 1500-watt amplifier delivers enormous power to fill any venue
  • JBL Differential Driver® transducers for higher SPL in a lightweight design
  • Redesigned Crown input technology, including XLR and 1/4'' combo inputs plus XLR loop-through
  • Intelligent variable-speed fan activates only when needed to reduce noise
  • Updated tuning delivers flat frequency response and smooth off-axis behaviour
  • Durable wooden cabinet, tour-proven DuraFlex™ finish and dent-resistant 16-gauge grilles
  • Universal power supply for worldwide compatibility
  • dbx Type IV™ limiting ensures clear, accurate sound at high volumes
  • Brutal testing regimen - including the famous JBL 100-hour power test - ensures reliable performance


  • System Type: Self Powered 18'' Subwoofer
  • Amplifier: Class-D
  • Power Output: 1500W
  • Low Frequency Driver: 1 x JBL 2278G 18'' Woofer
  • Maximum SPL Output: 134dB Peak
  • Frequency Range: 30Hz - 103Hz (-10dB)
  • Frequency Response: 35Hz - 87kHz (±3dB)
  • Internal Crossover Frequency: 100Hz DSP
  • Loop Out Crossover Frequency: 120Hz Analog 24dB Filter Slope
  • Input Connectors: 2 x Balanced XLR / 1/4'' Combo
  • Input Impedance: 20kΩ Balanced
  • Signal Indicators:
    • Limit: Yellow LED - Peak Output and DSP Limiter Active
    • Signal: Green LED - Signal Present
    • Power: Blue LED - Power On
  • Dynamic Control (Input): dbx Type IV™ Limiter Circuit
  • Enclosure: Rectangular 18mm & 25mm Plywood
  • Transport: 2 x Integrated Handles with Injection Moulded Backing Cup
  • Finish: Obsidian DuraFlex™
  • Grille: Powder Coated, Obsidian, 16 Gauge Perforated Steel with Acoustical Transparent Black Cloth Backing
  • Dimensions: 692mm x 523mm x 724mm / 27.26'' x 20.6'' x 28.5'' (H x W x D)
  • Weight: 45kg / 100lb