Wharfedale DELTA X18 B

Delta X18B - 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 X18B 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 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, the full range models of Delta X 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

• 18" LF driver
• 4" voice coil
• 134dB Max SPL
• Birch plywood construction
• Premium Rhino Rock paint
• 4Ω or 8Ω models
• 800w continuous
• 1600w programme
• 3200w 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 Plywood Construction
Delta X18B 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-X18B
• System Type Passive
• Configuration Subwoofer
• Frequency Response (+/-3dB) 38-1.5kHZ(BI-AMP)
• Frequency Range (- 10 dB) 30-1.5KHZ
• Sensitivity (2.83v/1m) 99dB
• Calculated Maximum SPL @1m 134dB
• System Rated Impedance 8Ω or 4Ω

Low Frequency Transducer

• Size 470mm / 18"
• Voice-Coil Size 102mm / 4"
• Rated Impedance 8Ω or 4Ω
• LF Power (re:AES2-2012) 800W

Power

• System Continuous Power 800W
• System Programme Power 1600W
• System Peak Power 3200W
• 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 539mm / 21.2"
• Width Front 539mm / 21.2"
• Width Rear 539mm / 21.2"
• Depth 650mm / 25.6"

Dimensions - Packed

• Height 624mm / 24.6"
• Width Front 611mm / 24.1"
• Width Rear 611mm / 24.1"
• Depth 722mm / 28.4"

Weight

• Net Weight (kg / lbs) 37.3kg / 82.06lbs
• Gross Weight (kg / lbs) 43.2kg / 95.04lbs