Q Acoustics QB12 Subwoofer

Q Acoustics

  • 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.


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.

SKU: N/A Categories: ,
Weight 21500 g
Dimensions 400 × 400 × 446 mm


Black, White

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


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