B&C TBW100 18" Professional Subwoofer Driver

Regular price $615.77 See Price in Cart


  • 3,000 Watts continuous program power capacity (RMS)
  • 100 mm (4-inch) split winding copper voice coil
  • 57 mm peak-to-peak excursion before damage
  • 13.0 mm xmax @ 1/3 gap; 18.0 mm usable excursion @ 2/3 gap
  • Double silicone spider with optimized compliance
  • Ventilated voice coil gap for reduced power compression
  • Aluminium demodulating ring for very low distortion
  • 18” Nominal Diameter
  • 96 dB sensitivity
  • 33.3 lbs.
  • Available in 4 Ohm and 8 Ohm options (Please be sure to order the correct one; send us a note if you have any questions.)

Manufacturer's Datasheet 4-Ohm (PDF)

Manufacturer's Datasheet 8-Ohm (PDF)


This super-premium driver from the professional audio world works very well in the MBM-18 cabinet. Two drivers produce upwards of 127dB from 30Hz up and upwards of 130dB at 70Hz.  If you are looking for a clean, impactful, music bass driver, this is an excellent choice.

The driver's high efficiency and high resonant frequency allow it to achieve this enormous output with only about 10% as much real power at 70Hz as the UM-18 (one of our favorite home theater drivers).  The result is less power compression, less distortion, and a much 'punchier' mid-bass. 

Two channel enthusiasts looking for a subwoofer will find the TBW100 produces exceptionally linear bass.  Good inductance control keeps distortion to a minimum allowing each note of the music to be represented with accuracy and definition.  

Voice Coil Magazine tested the TBW100 and concluded "The Bl Curve [the magnetic field] is very broad and extremely symmetrical.  It is what a loudspeaker engineer would call picture perfect since both the Bl curve and its accompanying offset are almost perfectly overlaid...Great job guys!"  Interpretation: the TBW100 will produce extremely low harmonic distortion.

Four TBW100 drivers could be used in Marty-Cubes or Mini-Marty cabinets to provide full range Reference Level output for movies and exceptional mid-bass for music all in one package.  The largest theaters and/or systems targeting the most extreme levels of output may want to step up to six or eight units.  Six drivers in Mini-Marty cabinets would produce upwards of 130dB down to 16Hz before room gain.

The TBW is not the lowest cost driver, but it does provide benefits that in the right application make it more than worth the price, which is why we are proud to offer it to you.