# Q Acoustics Q SUB120 12" Active Subwoofer

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.

###### What You Get

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

###### 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

## Details

- **Price:** 799.0 GBP
- **Vendor:** Q Acoustics
- **Type:** Subwoofers
- **Tags:** BLACK5, SALE5

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Black | 799.00 GBP | In stock |
| White | 799.00 GBP | In stock |

## Images

- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio
- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio
- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio
- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio
- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio
- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio
- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio
- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio
- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio
- Q Acoustics Q SUB120 12" Active Subwoofer - K&B Audio

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> Source: [K&B Audio](https://www.kbaudio.co.uk/products/q-acoustics-q-sub120-12-active-subwoofer)
> Updated: 2026-05-13