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Wharfedale Pro Delta X218B 2 x 18-inch 600W RMS Dual Subwoofer

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Delta X builds on the global success of the Wharfedale Pro Delta series.
Constructed from 18mm plywood and covered in the highest quality Rhino Rock paint, the new Delta X218B is instantly recognisable by its engraved iconic Wharfedale Pro boomerang logo on its surface. The fresh cosmetic design however is not the only improvement the engineering team have made in creating the Delta X series.
Internally Delta X models have a new crossover design and construction. Using new component positioning and bracing, the sensitive crossover electronics have been re-engineered to improve long term performance and reliability even at the highest of volumes.

With rear panel switching, Delta X218 has Discrete and Parallel modes of operation. This allows to address each LF driver individually, or as a pair. This routing flexibility allows for Delta X systems to be refined using multiple amplifiers and external crossovers.
Custom Wharfedale Pro transducers have been selected. High output, low physical distortion cast frame woofers deliver unparalleled low frequency response. With the exception of the Delta X10, 2 titanium compression drivers are coupled to 90×45 elliptical waveguides for impressive output level and smooth HF dispersion.
With a full lineup of 9 new models, ranging from the 300w RMS Delta X10 to the 1600w RMS Dual Chamber 2 x 18 Delta X218 subwoofer, Delta X models are perfect for fixed installation and touring applications.


  • 2 x 18″ LF drivers
  • 4″ voice coils
  • 138dB Max SPL
  • Birch plywood construction
  • Premium Rhino Rock paint
  • 4 Parallel and 8 operation
  • 1600w parallel continuous
  • 3200w parallel programme
  • 6400w parallel peak
  • 4 carry handles
  • Model Name DELTA-X218B
  • System Type Passive
  • Configuration Dual Chamber Subwoofer
  • Frequency Response (+/-3dB) 30-1.5KHZ
  • Frequency Range (- 10 dB) 30-1.5KHZ
  • Sensitivity (2.83v/1m) 100dB
  • Calculated Maximum SPL @1m 138dB
  • System Rated Impedance Parallel:4 Discrete:8 x2
  • Low Frequency Transducer
  • Size 470mm / 18″
  • Voice-Coil Size 102mm / 4″
  • Rated Impedance 2×8
  • LF Power (re:AES2-2012) 800W
  • Power
  • System Continuous Power 1600W Parallel / 800W Discrete
  • System Programme Power 3200W Parallel / 1600W Discrete
  • System Peak Power 6400W Parallel / 3200W Discrete
  • Input Connector 2 x NL4 (speakON Compatible)
  • Handles 4 on Sides
  • Enclosure Material 18mm Plywood
  • Finish black paint
  • Grille Material and Finish 1.5 mm Steel Black
  • Dimensions – Unpacked
  • Height 541mm / 21.3″
  • Width Front 1041mm / 41.0″
  • Width Rear 1041mm / 41.0″
  • Depth 650mm / 25.6″
  • Dimensions – Packed
  • Height 626mm / 25.6″
  • Width Front 1126mm / 44.3″
  • Width Rear 1126mm / 44.3″
  • Depth 722mm / 28.4″
  • Dimensions – Packed Weight
  • Net Weight (kg / lbs) 78.9kg / 173.9lbs
  • Gross Weight (kg / lbs) 86.0kg / 189.6lbs
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