• 55081
  • DE 29323089

Press & awards



The legendary BRAX MATRIX loudspeaker series – since many years the synonym for state-of-the-art sound quality – is now expanded with the ML8 SUB. Just as uncompromisingly developed and manufactured as all BRAX loudspeakers, it pursues the goal of acoustic perfection.

Precision in perfection!

For years, our BRAX subwoofer has been the benchmark for precision and unconditionally controlled bass reproduction. It was even more demanding to create a BRAX subwoofer that uncompromisingly reproduces deep bass even in smallest possible enclosures. Each component of this exceptional driver is not only made for dynamics and perfect tonality, but is also designed to convert even huge loads of amplifier power into sound pressure without compression.

MicroSphere  a material for two opposing requirements

The demand for maximum cone stiffness in combination with highest innner damping seems like the attempt to square the circle – actually the unique "MicroSphere" coating, where ceramic micro-hollow spheres with a diameter of only 75 microns are embedded in a polymer layer and applied to the diaphragm makes the impossible possible. It warrants for maximum acoustic precision and unrivaled sound quality. 

Timeless elegance

The clear, reduced design language is the distinguishing feature of every BRAX product  the ML8 SUB follows this philosophy unconditionally. The combination of the finest materials is underlined once more by the optionally available MR8 stainless steel ring, which can be used as a mounting ring or to fix the grille, depending on the installation position. Of course, the ML8 SUB comes in a noble wooden box with its own serial number, which is recorded in a service database.


  • Exceptional stiff hand-scooped paper cone with unique “MicroSphere” coating consisting of micro ceramic hollow spheres embedded in a polymer layer offers best possible impulse response
  • Specially shaped rubber surround for long linear cone excursion
  • 2 x 2 Ohms dual voice coil with exceptional winding height for high linear excursion and lowest possible distortion
  • Optimized voice coil ventilation through large, mesh-protected holes in T-yoke and basket for almost zero compression effects and maximum heat dissipation
  • Specially developed, aerodynamically optimized and extremely solid aluminum diecast basket
  • Extremely powerful and precisely machined magnet system for highest magnetic flux linearity
  • Massive push-terminals for large wire gauge

Technical data

Power RMS / max.   400 / 800 Watt
Impedance  Z 2 x 2 Ω
DC resistance  Re 2 x 1.9 Ω
Resonance frequency  Fs 32 Hz
Mechanical Q factor  Qms 9.63
Electrical Q factor  Qes 0.60
Total Q factor Qts 0.56
Compliance Cms 323 µm/N
Equivalent air volume Vas 22 L
Force factor  B*I 10.3 Tm
Efficiency 1 W / 1 m SPL 85 dB
Cone area  Sd 219 cm²
Moving mass  Mms 83 g
Cone material   Paper cone with “MicroSphere” coating consisting of micro ceramic hollow spheres embedded in a polymer layer
Mechanical resistance  Rms 1.67 kg/s
Voice coil diameter ø 50 mm / 2.0"
Voice coil winding height   26.4 mm / 1.0"
Max. linear excursion  Xmax +/- 9,2 mm
Outer diameter ø 222 mm / 8.7"
Installation diameter ø 191 mm / 7.5"
Installation depth   95.6 mm / 3.8"
Recommended enclosure volumes      
Sealed box   Optimal enclosure size Minimal enclosure size
Net volume   17 L 10 L
Lower limiting frequency (-3dB)   43 Hz 48 Hz
DSP setting highpass filter   Frequency: 32 Hz
Characteristic: “Self-define”
Q-Factor: 1.0
Frequenz: 35 Hz
Charakteristik: “Self-define”
Q-Faktor: 1,0
Vented box      
Net volume  
Port diameter ø
Port area  
Port length  
Port tuning frequency Fb
Lower limiting frequency (-3dB)  


Our specifications for the net volume of sealed enclosures always refer to unfilled cabinets without any damping material inside. The net volumes can be reduced if the cabinet will be filled completely (not stuffed) with suitable materials. The following materials can be used for this purpose:

  • polyester wadding achieves a volume reduction of up to 5%
  • mineral wool or rock wool achieves a volume reduction of up to 10%
  • sheep wool achieves a volume reduction of up to 20% come

Damping of vented enclosure (as long as they are solely used in the frequency range up to 150 Hz) is counterproductive because the damping material generally reduces the effectiveness of the bassreflex port.


Scope of delivery

1 x High-End Subwoofer BRAX MATRIX ML8 SUB
1 x Certificate
1 x Data sheet

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