PreSonus AIR18S Active PA Subwoofer

£899.00 (including VAT @ 20%)

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30 day money back guarantee included

30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

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Optional: 5 year warranty: £50.80
(Includes 90 day money back guarantee)


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

However, the Gear4music extended warranty scheme provides an enhanced service, and is designed to offer a higher level of protection than many 'free' warranties offered by some retailers and manufacturers.

The highlights of this enhanced warranty service are:

  • Warranty is extended to 5 years from the date of delivery.
  • Our Money Back guarantee is extended from 30 days to 90 days (terms apply after 30 days)
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Product Ref: 76669

  • 1,200W Class D Power Amplification
  • 18-Inch Woofer With 3-Inch Voice Coil
  • Easy-To-Use DSP Performance Presets
  • Fully Variable Lowpass Filter
  • Rugged, Lightweight Birch Enclosure

PreSonus AIR18S Active PA Subwoofer

The PreSonus AIR18S Active PA Subwoofer is a 1,2000W, 18’’ premium-quality subwoofer featuring a 3-inch voice coil and DSP performance presets. The PreSonus AIR18S provides powerful and detailed bottom end ranging all the way down to 35 Hz. The AIR18S is the perfect companion for full-range PA loudspeakers such as the PreSonus AIR15 and AIR18 units. The 1,200 watts of Class D amplification provides optimal power, perfect for live performances. Its mobile construction makes it perfect for live settings, allowing you to easily transport the subwoofer where you go. It also features built-in DSP presets and a rear panel screen for monitoring your settings.

Product Ref: 76669

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Buy on finance from £24.77 per month Finance from £24.77 per month  

  • 15.9%
  • £31.37
  • £1,129.32
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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Powerful PA Subwoofer

The PreSonus AIR18S features a 18-inch low-frequency transducer as well as a 3-inch voice coil, with a dynamic power rating of 1,200W; more than enough power for a range of audio applications. The result is a powerful yet articulate sound that delivers punch and low-end clarity, perfect for accompanying full-range PA loudspeakers such as the PreSonus AIR series. Its extended frequency range (30Hz – 160Hz) ensures you pick up every nuance of your audio, ranging all the way down to the bottom end of the frequency spectrum for added thump. The subwoofer itself is driven by the Class D amplification for added detail as well as improving overall performance.

Versatile Control

One of the most unique features of the PreSonus AIR18S is the ability to cater to different environments and acoustics. The AIR-series subwoofers feature easy-to-use controls and signal processing presets. You can use these presets to compliment the space you are in, allowing you to use the subwoofer for normal FOH use or add extra thump to the low-end with the Mo’Bass preset. You can use the controls to perform in an array as well as reverse the polarity, adjust the master output level of the power amplifier, use the low-pass filter and more. You can even turn the grilles LED off for installation applications and more.

Lightweight, Portable Design

The lightweight yet rugged tour-grade birch enclosure is highly durable as well as being easy to transport. The built-in carry handles allow you to easily manoeuvre the AIR18S to and from live performances, gigs and more. As well as being portable, the AIR18S also features ground-stacking provisions and more, perfect for demanding installations. The AIR18S includes two combo XLR and 1/4’’ TRS line-level inputs with level control, allowing you to connect a range of audio devices such as microphones and more. The front-power LED indicator can also be disabled for low-visibility installations.


  • 1,200W (dynamic) Class D power amp
  • 18-inch woofer with a 3-inch voice coil
  • Easy-to-use DSP performance presets
  • Locate controls adjusts performance for arrayed and non-arrayed applications
  • Fully variable lowpass filter
  • Alignment delay
  • Reverse polarity
  • 2 comfortable ergonomic side handles
  • Ground stack provisions
  • Castor provisions (castor kit included)
  • Defeatable front-panel LED
  • Rugged, exture-painted, birch enclosure
  • Tour-grade, 17 gauge-steel grille


  • Configuration: Active vented design
  • Frequency Range: 30Hz – 160Hz
  • Maximum Output: 129dB SPL
  • LF Driver: 18’’ (3’’ voice coil)
  • Amplifier Type: Class D
  • Total System Power: 1,200W dynamic (600W continuous)
  • Inputs: 2 x XLR/TRS line combo
  • Outputs: 1 x XLR Link Out
  • DSP Features: LCD Screen with EQ and multiple presets
  • Cabinet: 15 mm plywood
  • Grille: 1.5mm steel
  • Handles: 2 side
  • Mounting: Groundstack provisions
  • Dimensions (HxWxD): 29.5" x 23.2" x 29.9" (750 mm x 590 mm x 760 mm)
  • Weight: 38kg (83.8 lbs)
  • Power Input: 115V / 230V ~50/60 switchable
  • Maximum Current: 5.3A (230V-50 Hz), 10.6A (120V)