Key Features


  • 2 x 15″ drivers with 3″ voice coils
  • 2″ voice coil HF compression driver
  • 137dB Max SPL
  • Birch plywood construction
  • Premium Rhino Rock paint
  • Bi-amp and Passive modes
  • 4Ω impedance
  • 1000w continuous
  • 2000w programme
  • 4000w peak
  • 2 carry handles
  • 2 sturdy castor wheels
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 X215 is made of premium 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.


Model Name DELTA-X215
System Type Passive
Configuration Quassi Three-way
Frequency Response (+/-3dB) 45-20KHZ
Frequency Range (- 10 dB) 45-20KHZ
Sensitivity (2.83v/1m) 101dB
Calculated Maximum SPL @1m 137dB
System Rated Impedance
Low Frequency Transducer
Size 2 x 404mm / 15″
Voice-Coil Size 77.1mm / 3″
Rated Impedance 2×8Ω
LF Power (re:AES2-2012) 2x500W
High Frequency Transducer
HF Driver Type Compression Driver
Voice-Coil Size 50.8mm / 2″
Exit Size 35.6mm / 1.4″
Diaphragm Material Titanium
Rated Impedance
HF Power (re:AES2-2012) 50W
Nominal Coverage (H x V) 90⁰ x 45⁰
System Continuous Power 1000W
System Programme Power 2000W
System Peak Power 4000W
Crossover frequency 1.8Hz
Input Connector 2 x NL4 (speakON Compatible)
Handles 2 on Sides / 1 on Back
Enclosure Material 15mm Plywood
Finish black paint
Grille Material & Finish 1.5 mm Steel Black
Dimensions – Unpacked
Height 1135mm / 44.7″
Width Front 488mm / 19.2″
Width Rear 299.6mm / 11.8″
Depth 450mm / 17.7″
Dimensions – Packed
Height 1218mm / 48.0″
Width Front 558mm / 22.0″
Width Rear 558mm / 22.0″
Depth 522mm / 20.6″
Weight 59.0kg / 130.0lbs
Net Weight (kg / lbs) 52.9kg / 116.6lbs
Gross Weight (kg / lbs) 59.0kg / 130lbs


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