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Wharfedale Pro Impact X-218B 2 x 18 Inch 1000W RMS Passive Sub-woofer


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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-X218B 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.

Both the LF drivers are custom engineered and are acoustically matched to the extremely durable MDF cabinet.

Full range IMPACT

The Impact Series has a desirable high power capacity and clarity. Impact-X218B is rated at 1000W RMS (4000W peak) and the power spans down to a 30Hz low-end.


  • Dual 18″ Passive subwoofer
  • 4000w peak power handling
  • 137dB Max SPL @ 1meter
  • 2.5″ LF voice coils
  • MDF construction
  • Combi connector inputs
  • 2000w Programme
  • 4000w Peak


Model Name IMPACT-X218B
System Type Passive
Configuration 2×18″ Subwoofer
Frequency Response (+/-3dB) 35Hz-1.2Hz
Frequency Range (-10dB) 30Hz-1.5kHZ
Sensitivity (2.83v/1m) 101dB
Calculated Maximum SPL @1m 137dB
System Rated Impedance
Low Frequency Transducer
Size 2 x 470mm / 18″
Voice-Coil Size 65mm / 2.5″
Rated Impedance 2×8Ω
LF Power (re:AES2-2012) 2x500W
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 1000W
System Programme Power 2000W
System Peak Power 4000W
Crossover frequency
Input Connector 2 x NL2 (speakON compatible) combi jack
Hardware N/A
2 carry handles
Enclosure Material and finish 18mm MDF
Colour Options black paint
Grille Material & Finish steel
Dimensions – Unpacked
Height 554mm / 21.81″
Width Front 1222mm / 48.11″
Width Rear 1222mm / 48.11″
Depth 606.5mm / 23.88″
Dimensions – Packed
Height 628mm / 24.72″
Width Front 1295mm / 50.98″
Width Rear 1295mm / 50.98″
Depth 685mm / 26.97″
Net Weight 72kg / 158.4lbs
Gross Weight 80.6kg / 177.32lbs
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