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Q Acoustics QB12 Subwoofer (Arctic White)


”If you love the sound of Q Acoustics’ speaker packages but covet more power, the QB12 is as good a solution as we could hope for.”’What Hi-Fi?’ – 5 Star review.

The QB 12 is the first Q Acoustics subwoofer to feature a 12in driver. The big long-throw driver is powered by an ultra low-distortion 220-watt Class D amplifier for tight, powerful bass response, and features a 50mm voice coil for minimal thermal compression. Equally at home with Q Acoustics’ Concept and 3000i range of stereo and centre speakers, Q B12 is designed to be equally adept at reproducing big Hollywood action moments as it is the deep, subtle textures of bass instruments.

We are a Q Acoustics Elite dealer with many of the entire range available to demo. Please contact us directly to arrange this - appointments are required.

Floor-shaking bass
If you like your favourite movies and music to be a truly physical experience, the Q B12 is the subwoofer for you. Featuring a mighty 12 inch woofer and driven by an equally impressive 220 watt, Class D amplifier, the Q B12 makes its presence felt – big time.

Built to resist distortion
Keeping this power in check, Q Acoustics have fitted the Q B12 sub with a large, diecast aluminium heat sink – keeping the amp cool running and the power coming. The cabinet is thick-walled and reinforced, making it as rigid as possible. This greatly reduces unwanted vibrations and rattles, meaning you can turn the volume up higher without distortion.

Room-friendly style and choice of finishes
Although no shrinking violet, Q Acoustics have rounded the ages off this mighty sub for a less obtrusive style. Black or white finishes are available or, as an extra cost option, luxurious deep gloss black or white.

The perfect match for Q Acoustics
Although the Q B12 makes a great match for most home cinema and hi-fi systems, it’s even more at home with matching Q Acoustic speakers. From the 3000i to the Concept ranges, the Q B12 feels right at home and even matches the house style.

Super-charge your movie and music nights, with the Q Acoustics Q B12.


From the subtlest nuance to volcano all-action

220 watts of Class D power driving a long-throw 12in drive unit sounds like a recipe for action. And that’s exactly what it is - no Hollywood blockbuster soundtrack features explosions too loud, too deep or too powerful for Q B12 to handle. But power is nothing without control, and Q B12 is just as comfortable describing the nuances of a double bass or an electronic kick-drum.


Strength and control

Q B12’s sealed, ‘infinite baffle’ cabinet is cleverly braced to deliver maximum stiffness to its motor system and, as a consequence, minimum influence on those deep bass sounds. Mechanical stability = aural satisfaction.


Ease, simplicity and performance

A reinforced MDF cabinet with a 36mm-thick baffle, a recessed and hidden terminal panel. Adjustable spiked feet with rubber caps. A choice of elegant, understated finishes. Q B12 is a simple and easy to position and set up as it is invigorating to listen to.



  • Drive unit: 305mm (12in) high-excursion and stiffness paper, straight-sided cone.
  • Peak Amplifier Power: 440 W
  • Continuous Amplifier Power: 220 W
  • Power type: Class D
  • Frequency range: 28 Hz - 300 Hz
  • Crossover frequency range: 70 Hz - 225 Hz
  • Input impedance: 13 kΩ
  • Input sensitivity: 150 mV
  • Enclosure type: Infinite baffle
  • Enclosure material: MDF
  • Dimensions (H / W / D): 400 x 400 x 446 mm (15.7 x 15.7 x 17.6 in)
  • Weight: 47.40 lbs / (21.5 kg)

 What’s in the box?

  • QB12 subwoofer
  • User manual
  • Power cable
  • 4 x adjustable floor spikes
  • 4 x floor spike locking rings
  • 4 x floor spike covers