WHARFEDALE PRO Delta-X Series 700 Watts RMS 15" Passive Subwoofer

DELTA-X15B

Wharfedale Pro

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DELTA-X15B

700 watts
AES (RMS)
  • 15″ Subwoofer
  • 4.0″ voice coil
  • 700 watts AES (RMS)
  • 1400 watts Programme
  • 2800 watts Peak
  • 132 dB Max SPL @ 1 meter

Delta-X builds on the global success of the Wharfedale Pro Delta series.

Constructed from 15mm plywood and covered in the highest quality Rhino Rock paint, the new Delta-X models are instantly recognisable by their engraved iconic Wharfedale Pro ‘boomerang’ logo on their cabinets.  The fresh cosmetic design however is not the only improvement the engineering team have made.

Internally Delta-X also has 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-X can operate in either Bi-Amp or Full range modes.  This routing flexibility allows for Delta-X systems to be refined using multiple amplifiers and external crossovers.

Custom Wharfedale Pro transducers have also 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° x 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.


  • Birch plywood construction
  • Re-engineered robust crossover design
  • Suitable for touring, rental and installation
  • 1.4″ Exit, 2″ Titanium Diaphragm Compression Drivers
  • Proprietary 90° x 60° Elliptical Wave Guide Horn design
  • Bi-amp and Passive mode switching
  • Extremely durable Rhino Rock finished cabinets
  • Multiple M6, M8 & M10 rigging points and integral tripod stand adapter
  • Trapezoid shape for arrays and stage monitoring
  • Dual spider technology on 18″ woofers
  • Rubberised 4-way handle


Model Name Delta X15B
System Type Passive
Configuration Subwoofer
Frequency Response (+/-3 dB) 42 Hz -2 KHz(BI-AMP)
Frequency Range (-10 dB) 38 Hz-150 Hz
Sensitivity (2.83 v / 1 m) 98 dB
Calculated Maximum SPL @1 m 132 dB
System Rated Impedance 8 Ω
Low Frequency Transducer  
Size 404 mm / 15″
Voice Coil Size 102 mm / 4″
Rated Impedance 8 Ω or 4 Ω
LF Power (re:AES2-2012) 700 w
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)  
Power  
System Continuous Power 700 w
System Programme Power 1400 w
System Peak Power 2800 w
Crossover frequency  
Input Connector 2 x NL4 (speakON Compatible)
Hardware  
Pole Mount 35 mm
Handles 2 on Sides
Enclosure  
Enclosure Material 15 mm Plywood
Finish Rhino Rock
Grille Material & Finish 1.5 mm Steel Black
Dimensions – Unpacked  
Height 471 mm / 18.5”
Width Front 471 mm / 18.5”
Width Rear 471 mm / 18.5”
Depth 600 mm / 23.6”
Dimensions – Packed  
Height 556 mm / 21.9″
Width Front 543 mm / 21.4″
Width Rear 543 mm / 21.4″
Depth 672 mm / 26.5″
Weight  
Net Weight (kg / lbs) 31.5 kg / 69.4 lbs
Gross Weight (kg / lbs) 35.12 kg / 77.4 lbs