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  • Wharfedale IMPACT-X18B 18'' Passive Subwoofer
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Wharfedale Pro

Wharfedale IMPACT-X18B 18'' Passive Subwoofer

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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.


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.


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
Size 470mm / 18"
Voice-Coil Size 65mm / 2.5"
Rated Impedance
LF Power (re:AES2-2012) 500W