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Cambridge Audio SX-120 Active Subwoofer

Cambridge Audio

The SX-120 subwoofer is designed from the ground up in London, with a custom-designed 8-inch driver and a powerful 70W RMS amplifier. Components were hand-picked by our in-house engineers and then painstakingly voiced to provide premium sound quality.
  • Sensitivity: 180mV for full power output
  • Frequency :34Hz – 150Hz
  • Rated output power: 70W
  • 70W RMS amplifier
  • 8-inch long-throw woofer


Sounds stunning, at an unbeatable price

Following Cambridge Audio?s ?Sound First? principles, the SX-120 is ideally suited to complement other models in the SX speaker range adding a deep and rich bass extension to your music. Not surprisingly, such performance is brought to you at a price that?s unbeatable. That?s down to our laser-like focus on delivering audio quality, not marketing hype or extraneous features. We put the money where it counts and we believe you?ll be able to hear the results!

Finished in black, the SX-120 is supplied with a complimentary grille.


  • Rigid MDF cabinet modelled using CAD so that the subwoofer dimensions minimize standing waves, for more precise bass response.
  • 70W RMS amplifier
  • 8-inch long-throw woofer with treated paper cone for a smooth and even frequency response
  • Individual controls to tailor volume, crossover frequency and phase adjustment
  • Auto-detect (on and off) to save energy
SKU: SX-120 Categories: , ,
Weight 7700 g
Dimensions 310 × 300 × 300 mm

Sensitivity: 180mV for full power output
Frequency Response 34Hz – 150Hz
Rated output power: 70W
Drive units: 1 x 8″ (203mm) long throw woofer
Crossover: 50 – 150Hz continuous/active
Max. Power Consumption: 100W
Colour: Black
Dimensions (W x H x D) 300 x 300 x 310mm (11.8 x 11.8 x 12.2″)
Weight 7.7kg