Wharfedale Impact X18B

Wharfedale Impact X18B


18" Passive subwoofer

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Wharfedale Impact X18B

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Standard Delivery
R500 flat rate Home Delivery - Courier Door to Door
Collection in Store
In Store Collection - Free
Free delivery to major cities
Free Shipping to Major Centres Only
SKU Impact X18B


 IMPACT series has become well-known for its power to price ratio.  Big power at great value. Customers around the world love their IMPACT series loudspeakers and are proud to use ‘Wharfedale Pro’.

To enhance that brand quality and customer passion, we have made a small cosmetic upgrade to IMPACT.  It now boasts the iconic Wharfedale Pro boomerang logo !

The Impact-X18B passive subwoofer encapsulates everything Wharfedale Pro stands for – High quality pro audio, at an affordable price. On this occasion we have raised the bar for affordable PA delivering a PA speaker series with a sound and aesthetic comparable to that of a much higher price bracket.

Key Features

  • 18" Passive subwoofer
  • 2000w peak power handling
  • 133dB Max SPL @ 1meter
  • 2.5" LF voice coil
  • MDF Construction
  • Combi connector inputs
  • 500w RMS
  • 1000w Programme
Full range IMPACT
The Impact Series has a desirable high power capacity and clarity. Impact-X18B is rated at 500W RMS (2000W peak) and the power spans down to a 30Hz low-end.


Built to take an IMPACT
The Impact-X18B is ready for whatever life throws at it.


The strong MDF cabinet is covered in a textured black paint to give a durable yet stylish finish, which brings a professional look to any sound reinforcement environment.


The finish is extremely hard wearing and is leagues above any other carpet covered cabinet in the same price point.
Specifications to make an IMPACT
Model Name IMPACT-X18B
System Type Passive
Configuration 18" Subwoofer
Frequency Response (+/-3dB) 40Hz-220Hz
Frequency Range (-10dB) 30Hz-250Hz
Sensitivity (2.83v/1m) 100dB
Calculated Maximum SPL @1m 133dB
System Rated Impedance
Low Frequency Transducer  
Size 470mm / 18"
Voice-Coil Size 65mm / 2.5"
Rated Impedance
LF Power (re:AES2-2012) 500W
High Frequency Transducer  
HF Driver Type  
Voice-Coil Size  
Exit Size  
Diaphragm Material  
Rated Impedance  
HF Power (re:AES2-2012)  
Nominal Coverage (H x V)  
Nominal Impedance  
System Continuous Power 500W
System Programme Power 1000W
System Peak Power 2000W
Crossover frequency 250Hz
Input Connector 2 x NL2 (speakON compatible) combi jack
Hardware 35mm pole socket
  2 carry handles
Enclosure Material and finish MDF
Colour Options black paint
Grille Material & Finish steel
Dimensions - Unpacked  
Height 526mm / 20.71"
Width Front 611mm / 24.06"
Width Rear 611mm / 23.06"
Depth 606.5mm / 23.88"
Dimensions - Packed  
Height 635mm / 25"
Width Front 710mm / 27.95"
Width Rear 710mm / 27.95"
Depth 660mm / 25.98"
Net Weight 34.52kg / 75.9lbs
Gross Weight 41.2kg / 90.6lbs
More Information
More Information
Brand Wharfedale
Speaker Size 18"
Brand Wharfedale Pro

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