Q Acoustics Q SUB120 12" Active Subwoofer

Q Acoustics  |  SKU: QA8718
Regular price £799.00
Colour: Black
Free Delivery Orders Over £50
60-Day Returns Happy Sound Guarantee
UK Audio Specialists Expert Advice & Support
★★★★★
K&B Audio Are Rated 4.9 Out Of 5 From 4,935+ Verified Reviews

Description

For those who demand earth-shaking bass, the Q Acoustics Q SUB120 is the ultimate subwoofer.

With a 12-inch driver and a 600W peak power output, this powerhouse delivers deep, resonant low frequencies for a truly cinematic experience.

Whether you're watching action-packed movies, listening to bass-heavy music, or gaming, the Q SUB120 ensures tight, impactful bass with absolute clarity. Featuring advanced DSP processing, a robust infinite baffle design, and custom digital amplification, this subwoofer guarantees optimal performance in any space.

Available in Satin Black or Satin White, the Q SUB120 is built to impress both visually and sonically.

FEATURES

  • Unparalleled Bass Performance: A 12-inch driver and 600W peak power provide room-filling bass with extreme depth and clarity.
  • State-of-the-Art DSP Processing: Ensures distortion-free, optimised performance, adapting automatically to different audio sources.
  • Infinite Baffle Design with Dart-Bracing: Reduces cabinet resonance for a cleaner, more precise low-end response.
  • Custom Digital Amplification: Four separate power amplifier stages enhance efficiency, reduce heat, and provide better speaker control.
  • Adjustable Room Integration: Fine-tune placement with dual-phase and delay controls for the best possible performance.
  • Seamless Speaker Pairing: The low pass filter with adjustable frequency range ensures effortless integration with any sound system.
  • Convenient Auto-Power Activation: The 12V trigger input allows the subwoofer to turn on automatically when needed.

For a cinematic and immersive bass experience, choose the Q Acoustics Q SUB120, the perfect subwoofer for audiophiles and home theatre enthusiasts.

Specifications

  • Enclosure Type: Infinite Baffle
  • Bass Unit Diameter: 305mm (12 In)
  • Effective Volume: 44.1 Litres
  • Max SPL @ 1m: 114dB
  • Frequency Response (–6dB): 28Hz – 250Hz
  • Low Pass Crossover Range: 40Hz – 250Hz
  • Peak Amplifier Power: 600W
  • Continuous Amplifier Power: 300W
  • THD @ Rated Power: 0.09%
  • Input Sensitivity (Max Gain): 300mV RMS
  • Maximum Input Level: 2.1V RMS
  • Input Impedance: 20kΩ
  • Noise Floor (A Weighted): 50μV
  • Dimensions (HxWxD): 398.8mm x 398.8mm x 431.8mm
  • Weight (Per Loudspeaker): 22.5Kg
  • Warranty: 2 Years

What You Get

  • 1 x Subwoofer
  • 4 x Spikes, Locking Nuts & Covers
  • 1 x Power Supply
  • 1 x User Manual

Downloads

Payment & Security

Payment Methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

2 Years Warranty + 60 Day Returns

K&B Audio are authorised retailers for Q Acoustics. Your purchase comes with a 2 Years warranty, expert help on hand and you get 60 day returns window in case you're not 100% happy with the product.

Frequently Asked Questions

Do you price match?

Yes, we will try our best to price match for you - but as a small independent company, we can't always guarantee it.

Please submit a price match request here.

We will price match where possible provided that the competitor is a like for like UK VAT registered company, they must be an authorised retailer, the product must be in stock and not on clearance.

Customer Reviews

More From Q Acoustics

Hassle-Free Home Audio

Over a Decade of Experience
Established in 2013, we’ve been helping customers enjoy hassle-free home audio for more than 10 years.

Shop with Confidence
Our 'Happy Sound Guarantee' guarantees you expert advice, 60 day returns and free delivery on orders over £50.

42,000+ Satisfied Customers
We’ll always help you find the right solution for your needs, not just what boosts our bottom line. Don’t just take our word for it – read our glowing customer reviews.

Extensive Product Range
With the top brands, carefully curated bundles and thousands of home audio products in stock, we’ve got something for every setup.

  • Expert Advice

    Talk to real audio specialists who help you choose the right system, not just sell boxes.

  • Showroom

    Visit our South Coast showroom to see, hear, and compare products before you buy.

  • Carefully Curated Bundles

    Hand-selected bundles guaranteed to work perfectly together, with no guesswork.

  • Free Project Design

    Get a tailored system layout and product recommendation before you buy.

What Our Customers Are Saying