Continuous Power Handling
Voice Coil Diameter
Magnet Material
The MBX series mid-bass woofers from B&C Speakers offer acoustic designers a new range of high efficiency, wide bandwidth alternatives that are not currently available in the B&C range. These full-featured transducers incorporate lightweight neodymium motors, inside/outside wound copper clad aluminum wire voice coils, weatherproof impregnated paper cones, and a symmetrical inductance profile. The MBX Series is especially well suited for two-way loudspeaker enclosures.


  • Nominal Diameter250 mm (10.0 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance6.5 Ω
  • Nominal Power Handling1350 W
  • Continuous Power Handling2700 W
  • Sensitivity399.0 dB
  • Frequency Range65 - 6000 Hz
  • Voice Coil Diameter64 mm (2.5 in)
  • Winding MaterialAluminium
  • Former MaterialGlass Fibre
  • Winding Depth13.0 mm (0.51 in)
  • Magnetic Gap Depth8.0 mm (0.31 in)
  • Flux Density1.25 T


  • Surround ShapeDouble Roll
  • Cone ShapeRadial
  • Magnet MaterialNeodymium Inside Slug
  • SpiderSingle
  • Pole DesignT-Pole
  • Woofer Cone TreatmentWaterproof Impregnated Cone


  • Resonance Frequency65 Hz
  • Re5.4 Ω
  • Qes0.28
  • Qms4.0
  • Qts0.26
  • Vas26.0 dm3 (0.92 ft3)
  • Sd346.0 cm2 (53.63 in2)
  • η₀3.1 %
  • Xmax4.5 mm
  • Xvar5.0 mm
  • Mms33.0 g
  • Bl17.1 Txm
  • Le0.44 mH
  • EBP232 Hz

Mounting And Shipping Info

  • Overall Diameter261 mm (10.28 in)
  • Bolt Circle Diameter245 mm (9.65 in)
  • Baffle Cutout Diameter230.0 mm (9.06 in)
  • Depth125 mm (4.92 in)
  • Flange and Gasket Thickness14 mm (0.55 in)
  • Air Volume Occupied by Driver1.5 dm3 (0.05 ft3)
  • Net Weight3.2 kg (7.05 lb)
  • Shipping Units1
  • Shipping Weight3.8 kg (8.38 lb)
  • Shipping Box295x314x175 mm (11.61x12.36x6.89 in)

Service Kit

  • RCK10MBX648
  • 2 hours test made with continuous pink noise signal (6 dB crest factor) within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.
  • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
  • Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.
  • Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.