Delta X15B

Refinement in detail

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 X15B is instantly recognisable by the engraved iconic Wharfedale Pro ‘boomerang’ logo on its cabinet.  The fresh cosmetic design however is not the only improvement the engineering team have made.
 
Internally Delta X15B 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 X15B can operate in either Bi-Amp or Passive 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°x45° 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.

Key Features


 

  • 15" LF driver
  • 4" voice coil
  • 132dB Max SPL
  • Birch plywood construction
  • Premium Rhino Rock paint
  • 4Ω or 8Ω models
  • 700w continuous
  • 1400w programme 
  • 2800w peak
  • 2 carry handles
  • Bi-amp and Passive modes


 

  • 15" LF driver
  • 4" voice coil
  • 132dB Max SPL
  • Birch plywood construction
  • Premium Rhino Rock paint
  • 4Ω or 8Ω models
  • 700w continuous
  • 1400w programme 
  • 2800w peak
  • 2 carry handles
  • Bi-amp and Passive modes
New crossover design
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.
15mm Russian Birch Plywood Construction
Delta X15B is made of premium 15mm Russian birch plywood.

It is even more dense than MDF and creates an extremely strong and durable cabinet. Although not recommended, birch plywood is more tolerant in damp conditions.

During construction, it is harder to cut but holds screws better than particle board or MDF. This makes it ideal for flagship professional audio loudspeakers which are to be used in extreme and critical environments.
Solid as a rock
As with all Wharfedale Pro PA systems, years of expertise is behind a loudspeaker built to last, with thanks to our high standards of quality control.

The Delta X series are coated in the highest quality Rhino Rock paint finish - a chip resistant texture with a professional, discrete aesthetic whilst being prepared for the rigours of life on the road.
Bi-amp and Passive modes
In BI-AMP mode, two power amplifiers can be used. This gives you the advantage of being able to select the best power amplifier specifications for each driver inside the loudspeaker. In a BI-AMP configuration, an external crossover is used to separate the frequencies and this splits the signal to the dedicated LF amplifier and the HF amplifier. This way, each amplifier is only working on the given frequency range and, in turn, is powering the corresponding driver inside the loudspeaker.

In PASSIVE mode, a single amplifier can be used to power all drivers inside the loudspeaker. The full frequency range is put into the loudspeaker and the loudspeakers’ internal crossover separates the frequencies, delivering the right frequencies to the right driver. In the example of a 2-way passive loudspeaker, this means that the single amplifier is powering both the HF compression driver and the LF transducer. The internal crossover takes care of both the frequency and power separation.

SPECIFICATIONS

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