REL Acoustics HT/1205 Mark II Subwoofer Black

REL HT/1205 MKII Subwoofer – High-Impact Home Cinema Bass

Take your home cinema to the next level with the REL Acoustics HT/1205 MKII Subwoofer, engineered to deliver powerful, precise bass without unnecessary complexity. Designed specifically for cinematic performance, this model combines raw output with refined control—making it a standout choice for immersive movie sound.

Bigger Output, Greater Impact

The HT/1205 MKII pushes performance far beyond its predecessor, delivering up to 50% more output. This increase in power creates a more dynamic, room-shaking experience while maintaining clarity and control across every scene.

12” CarbonGlas™ Driver for Precision Bass

At its core is a high-performance 12-inch CarbonGlas™ driver, built with a lightweight glass fibre cone and reinforced carbon fibre centre cap. This advanced design ensures fast response, minimal distortion, and tight, accurate bass reproduction—even at high volumes.

500W Class D Amplifier for Effortless Power

A next-generation 500W Class D amplifier provides the driving force behind this subwoofer. Designed for efficiency and reliability, it delivers deep, controlled bass with ease, while running cool even during demanding playback.

Tuned for Pure Home Cinema Performance

Unlike general-purpose subwoofers, the HT/1205 MKII is purpose-built for home theatre. Specially developed input filters create a flat, extended low-frequency response into the low 20Hz range, enhancing explosions, sound effects, and cinematic detail.

Premium Build with Modern Styling

The cabinet is solidly constructed and internally braced to reduce resonance and improve sound accuracy. Finished in a sleek black line-grain composite with a high-gloss lacquer top plate, it offers a premium look that fits seamlessly into modern entertainment spaces.

Wireless-Ready Flexibility

For cleaner installations, the HT/1205 MKII supports optional REL HT-Air wireless connectivity. This allows you to position the subwoofer freely without running long cables, while maintaining fast, zero-compression signal transmission.

Key Features

• 12-inch CarbonGlas™ driver for deep, accurate bass
• 500W Class D amplifier for powerful, consistent performance
• Up to 50% more output than previous generation
• Optimised for home cinema with extended low-frequency response
• Solid, vibration-resistant cabinet design
• Optional HT-Air wireless compatibility for flexible placement

Technical Specifications

• Type: Closed box, front-firing
• Driver: 12” (300mm) CarbonGlas™ cone with carbon fibre dust cap
• Amplifier: NextGen5 Class D
• Power output: 500W RMS
• Frequency extension: -6dB at 22Hz
• Inputs: Dual-purpose stereo RCA or LFE RCA
• Outputs: Daisy chain stereo RCA or LFE RCA
• Wireless: HT-Air compatible (optional)
• Dimensions: 413 x 387 x 438 mm
• Weight: 19.6 kg

Built for Cinema. Designed to Perform.

The REL HT/1205 MKII Subwoofer is a powerful solution for anyone seeking impactful, high-quality bass in a home theatre system. With its combination of advanced driver technology, high-output amplification, and refined cabinet design, it delivers the kind of immersive low-frequency performance that transforms everyday viewing into a cinematic experience.