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Q Acoustics Q B12 Matt Black Subwoofer

Q Acoustics

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Brand-new, unused, unopened and undamaged item in original retail packaging (where applicable).


Limited 2-5 year warranty.  More info

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Thu 23rd September 2021

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AV Online

"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."

The Q B12 is the first in a new range of ultra powerful subwoofers. Designed to integrate and complement the award-winning Q Acoustics’ 3000i and Concept 5.1 speaker ranges, enabling ‘Plus’ packages of three existing home cinema packs. The Q B12 is finished in black or white, high gloss or vinyl to fit seamlessly into a new or existing home cinema set up.

The largest and most powerful subwoofer from Q Acoustics so far, with the amplifier’s proprietary PurePath Ultra-HD technology ensuring unwanted distortion is minimised across the board, resulting in a taut but forceful sound.

The Q B12 boasts a long-throw 12-inch driver with high sensitivity and superb dynamics, powered by an ultra-low distortion 220W Texas Instruments TPA3255 Class D amplifier. Q B12 has a ‘dart brace’ internal design inside the subwoofer’s reinforced MDF cabinet with a 36mm baffle, providing superior mechanical stability to the driver and the reinforced rigidity reduces resonance and vibrations for an improved accurate bass response

Punchy & Powerful

Punchy & Powerful

The Q B12 Subwoofer has been specifically designed to deliver the ultimate cinematic highs and lows, all the floor-shaking bass you would expect from a plus-sized Subwoofer from Q Acoustics. Despite its magnificent size, it is precise, detailed and dynamic. With the integration of internal ‘Dart bracing’ providing additional cabinet rigidity and a reinforced MDF cabinet with a 36mm thick baffle, both work together to suppress cabinet resonance for a more controlled bass response and a more realistic cinematic experience.

Designed To Integrate

Designed To Integrate

The Q B12 has been designed to fit seamlessly within one of Q Acoustics multi-award winning home cinema packs including the Q Concept 5.1, Q 3050i 5.1 and the Q 3010i 5.1 available in a black and white, both vinyl and gloss, for the perfect match. Each has its merits with regards to the sound and setup and each can be sonically enhanced and upgraded creating a truly ‘Plus-Size’ cinema package with the addition of this 12inch subwoofer. The Q B12 is also perfect for those aiming to upgrade the low-end response in an existing home set-up.

Seamless Setup

Seamless Setup

With its recessed and hidden rear terminal panel, hiding all plugs and cables neatly out through the base of the subwoofer, the Q B12 can be easily and discreetly positioned. Custom designed, adjustable spiked feet give firm support on carpeted floor and reinforced rubber caps supplied for use with wooden floors ensuring integral stability for your subwoofer.

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.

Enclosure Type Infinite Baffle (sealed)
Enclosure Material MDF
Drive Units 12” (305mm) High-Excursion
Continuous Amplifier Power 220W
Peak Amplifier Power 440W
Frequency Range 28Hz - 300Hz
Overall Dimensions 400 x 400 x 446mm (H x W x D) without spikes
Weight 18.5 kg
Mains Power 100 V-240 V, 50/60 Hz
Input impedance 13 kΩ
Input sensitivity (for full power at 50Hz, level set to maximum) 150 mV, (L=R), 300mV, (L only)
Input sensitivity for auto switch-on 1.5 mV (L=R), 3 mV (L only)
Crossover frequency range 70 Hz - 225 Hz (12dB/octave)

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.

Options from £495.00 to £649.00

Q Acoustics Q B12 Matt White Subwoofer

Q Acoustics Q B12 Matt White Subwoofer

Q Acoustics Q B12 Gloss White Subwoofer

Q Acoustics Q B12 Gloss White Subwoofer

Q Acoustics Q B12 Gloss Black Subwoofer

Q Acoustics Q B12 Gloss Black Subwoofer


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