Q Acoustics Q B12 – 12″ Sealed Subwoofer with Precision Bass Control

The Q Acoustics Q B12 brings authoritative low-end performance to your home audio system, blending a long-throw 12-inch driver with a low-distortion Class D amplifier in a reinforced, compact enclosure. Whether for dynamic movie soundtracks or delicate bass lines, it delivers both depth and finesse.

Key Features

• 305 mm long-throw driver: Builds deep, controlled bass from 28 Hz upward.
• 200 W Class D amplifier (400 W peak): Clean, real-world power for impactful dynamics.
• Sealed infinite-baffle cabinet with bracing: Enhances mechanical rigidity and musical accuracy.
• Phase switch, crossover and level controls: Easy integration for smooth speaker pairing.
• Adjustable spiked feet with caps: Ensures stable placement across floor types.
• Recessed terminal panel with magnetic cover: Clean, practical rear aesthetics.

Customer Benefits

Whether you're immersed in booming soundtracks or subtle musical nuances, the Q B12 delivers balanced and refined bass that supports—and never overwhelms—your main speakers. It's reliable, easy to set up, and blends both power and control for immersive audio enjoyment.

Quick Specs

• Driver: 12 in (305 mm) long-throw cone
• Amplifier: 200 W continuous / 400 W peak (Class D)
• Frequency range: 28 Hz – 300 Hz
• Crossover range: 70 Hz – 225 Hz
• Impedance: 13 kΩ
• Sensitivity: 150 mV input
• Dimensions: 40 cm × 40 cm × 44.6 cm
• Weight: Approx. 21.5 kg

What’s in the Box

• Q Acoustics Q B12 subwoofer
• Power cable
• 4 adjustable floor spikes
• 4 locking rings for spikes
• 4 spike covers for hard floors
• User manual

Use Cases / Ideal For

Perfect for home theatres and hi-fi systems that crave both rumble and refinement. Ideal companion for Q Acoustics Concept or 3000i speaker lines—but tailored to complement any speaker setup seeking articulate low-end extension.

Compatibility

Integrates via RCA (line-level or LFE input), with onboard controls for phase (0°/180°), crossover, and volume—so it matches cleanly with most AV receivers or preamps.

Pros & Cons

✅ Pros:

• Deep, tight bass with minimal distortion
• Well-engineered sealed cabinet for musicality
• Elegant, compact, and easy to place
• Controls for seamless system integration

⚠️ Cons:

• Large, weighty unit needs dedicated space (21.5 kg)
• Lacks built-in EQ—requires receiver adjustments for room compensation

The Q Acoustics Q B12 delivers refined, dynamic bass performance with precision build and integration ease—ideal for listeners who want power and musical accuracy in one exceptional sub.