• 700 Watts Continuous
  • 1400 Watts Peak
  • 129 dB Max SPL @ 1 meter
  • Birch plywood construction
  • Illuminated LED front logo badge
  • Convection cooled Class D amplifier
  • Adjustable low pass filter
  • 3.0″ voice coil
  • Quad layer driver design
  • 35 mm pole socket & durable handles
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Voice coil

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Max SPL @ 1 meter

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Continuous power

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Peak power

Everyone Loves BAss !

That is exactly why we have created the T-Sub-AX15B – our 700 W Continuous, 1400 W Peak 15” active subwoofer. 

The internal Class D amplifier delivers huge output power into the custom quad-layer 15” Wharfedale Pro LF driver to produce extreme subs and low end pressure into any system. Built for big bass, the plywood constructed cabinet is rock solid and is protected in durable black paint.

You’ll not only ‘feel’ the T-Sub-AX15B, but you will also see it! A new illuminated WP logo badge subtly glows and adds to the overall on-stage “power” of the new T-Sub.

T-Sub-AX15B is the perfect companion for a Typhon or a Titan active loudspeaker. It also has 75% more power than the current Titan Sub-A15 MKII.

Hold on to your socks! T-Sub-AX15B is going to blow them off!


T-Sub-AX15B has been designed to be the perfect partner for Wharfedale Pro plastic active loudspeakers.

Used with a Tourus, a Titan or our flagship Typhon models, T-Sub-AX15B completes the system – bringing new levels of bass to the setup.

+75% More power

Here at Wharfedale Pro, we are passionate about our products!
But there comes a time when we have to admit defeat!

Our original Titan Sub A15 MKII cannot stand up to T-Sub-AX15B !!! 🙁
T-Sub-AX15B is +75% more powerful than our classic Titan Sub A15 MKII.

Titan Sub A15 MKIIT-Sub-AX15B
Continuous Power400 watts700 watts
Peak Power600 watts1400 watts
LF Voice coil size2.5″3.0″

Protect the bass

A protective optional soft cover for T-Sub-AX15B Active Subwoofers.

With easy access to both carry handles and a soft protective padding, the T-Sub-15 soft covers are simple to put on and simple to remove – making setup and breakdown easy.



Model NameT-Sub-AX15B
System TypeActive 15″ Subwoofer
Frequency Response (+/-3 dB)45 Hz-200 Hz
Sensitivity @ 1W / 1 m)97 dB
Maximum SPL (peak @ 1 m)129 dB
Low Frequency Transducer
Size (mm / inches)404 mm / 15”
Coil Size (mm / inches)Quad layer 3.0″
Low-Frequency Power Amplifier (Class D)700 w Continuous / 1400 w Peak
Crossover FrequencyLPF 80-200 Hz (adjustable)
Amplifier ProtectionYes
Power On ProtectionPower switch on / off mute
Thermal ProtectionAmplifier shutdown, auto reset
Driver ProtectionYes
DC ProtectionYes
Short ProtectionYes
Limiter IndicatorRed LED
Input typeBalanced
Input Connectorsocket XLR
Input Impedance47 KΩ Balanced
Maximum Input Level5V
Input Sensitivity-10 dB
Line Output Connectorpin XLR
Phase Switch Selection0° / 180°
AC Power details
Power SupplySMPS
AC Power Options100V-120V and 200V-240V
Power IndicatorGreen(back) / Blue logo(front)
Enclosure Material15 mm Plywood
Grille1.5 mm steel
Pole Mount (Top)35 mm
Dimensions (Unpacked):
Height591 mm / 23.27″
Width454 mm / 17.9″
Depth523.9 mm / 20.63″
Dimensions (packed):
Height689 mm / 27.1″
Width544 mm / 21.4″
Depth610 mm / 24.0″
Net Weight (kg / lbs)25.7 kg / 56.5lbs
Gross Weight (kg / lbs)29.5 kg / 64.9lbs