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Wharfedale Pro

Wharfedale Pro DELTA-AXF15 Active Speaker

Wharfedale Pro DELTA-AXF15 Active Speaker

Regular price $939.00
Regular price Sale price $939.00
Sale Sold out



Active plywood loudspeakers – with internal FIR DSP

  • Internal FIR signal processing
  • Proven ‘DELTA Active’ reliability
  • Practical ‘DELTA Active’ design
  • Retro-fittable electronics
  • Compatible with DELTA active subwoofers
  • Increased Continuous Power.  Now 800 Watts



  • 15″ two-way bi-amplified active loudspeaker
  • 800 watts Continuous power
  • 1600 watts Peak power
  • 90° x 45° dispersion
  • 2″ HF Compression driver
  • 3″ LF voice coil
  • Advanced Internal FIR DSP 
  • 131.5 dB Max SPL @ 1 meter



The graph shows phase response. 

Frequency is on the X axis and time (expressed in degrees) is on the Y axis.


Delta-AXF models use premium Baltic birch plywood construction.

Not only does this create a solid and durable cabinet, but it also contributes to the overall sound and character.

Delta-AXF is also covered in our most durable and hard wearing Rhino Rock paint finish. This ensures that a Delta-AXF will always look as good as the day you unboxed it.


Delta-AXF features a routed Wharfedale Pro logo.

It is also a logo to be proud of. A logo that lets your audience know that the sound of your even will be of the highest possible quality.


Delta-AXF12 and Delta-AXF15 are perfectly matched with the Delta-AX15B and Delta-AX18B subwoofers.


Delta-AXF12 and Delta-AXF15 use 2 x Class D amplifiers.  These are specifically tuned and selected to be the perfect match for the HF and LF drivers inside.

With multiple analogue inputs, Delta-AXF full range models are ready to connect to whatever signal source you have.



Model Name DELTA-AXF15
System Type Active 15” 2-way Bi-Amplified
Frequency Response (+/-3 dB) 50 Hz – 20 KHz
Frequency Range (-10 dB) 45 Hz – 20 KHz
Calculated Maximum SPL @1m 131.5 dB
Low Frequency Transducer – Size ( mm / inches) 404 mm / 15″
Coil Size ( mm / inches) 75 mm / 3″
Impedance 4 Ω
High Frequency Transducer – Type Compression Driver
Coil Size ( mm / inches) 51.2 mm / 2″
Exit Size ( mm / inches) 25 mm / 1”
Diaphragm Material Titanium
Impedance 8 Ω
Nominal Coverage (H x V) 90° x 45°
Amplifier Design Class D
Power Rating: 1600 W Peak (1400 W LF +
200 W HF), 800 W Continuous
(700 W LF + 100 W HF)
Power On Protection Power Switch On/Off Mute
Thermal Protection Amplifier Shut Down. Auto Reset
Low Line Voltage Shut Down 80% Nominal Line Voltage
Driver Protection Independent LF and HF Limiters
DC and Short Protection Yes
Clip Limiter Turns on Approx 650 W Output
Limiter Indicator Red LED
Power Indicator Green LED
Input A – type Switchable Balanced Mic or Line Level Input
Input Sensitivity Mic:-40 dBu Line:0 dBu
Maximum Input Level 22 dBu
Input Connector XLR 1/4〞Combo jack / 2 x RCA
Input Impedance Balanced:20 KΩ Unbalanced:10 KΩ
Line Output Connector Switchable LOOP/MIX Balanced pin XLR Connector
Impedance Balanced Balanced: 200 Ω Unbalanced:100 Ω
Loop Gain Mic:69 dB, Line:29 dB
AC Power details – Power Supply High Efficiency Switching Mode Power Supply
AC Power Options AC100-120 V~/220-240 V~,50/60 Hz
Hardware – Rigging M10 x 6
Pole Mount Dual Angle (0⁰ or 10⁰) 35 mm Pole Socket
Enclosure Material and finish 15 mm Plywood
Colour Options Black Rhino Paint
Grille Material & Finish 1.5 Steel
Unpacked dimensions – Height 700 mm / 27.56″
Width (Front) 446 mm / 17.56″
Width (Back) 281.4 mm / 11.08″
Depth 406 mm / 15.98″
Packed Dimensions – Height 803 mm / 31.6”
Width (Front) 638 mm / 25.1”
Width (Back) 366 mm / 14.4”
Depth 498 mm / 19.6”
Net Weight ( kg / lbs) 30.5 kg / 67.1 lbs
Gross Weight ( kg / lbs) 35.4 kg / 77.9 lbs


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