REL HT/1205 MKII – High-Performance 12" Home Cinema Subwoofer
Designed to bring cinema-grade bass into your home. The REL HT/1205 MKII is a purpose-built active subwoofer engineered exclusively for home cinema. Combining a powerful 500W NextGen5 Class D amplifier with a newly developed 12-inch CarbonGlas™ long-throw driver, it delivers deep, fast and authoritative bass capable of reproducing the full impact of modern film soundtracks while maintaining the control and precision that define REL loudspeakers.
- Dedicated home cinema active subwoofer
- 500W RMS NextGen5 Class D amplifier
- 12" CarbonGlas™ long-throw front-firing driver
- Frequency extension down to 22 Hz (-6 dB)
- Compact sealed cabinet for fast, controlled bass
- Stereo RCA and LFE inputs with daisy-chain outputs
- Compatible with the optional REL HT-Air MKII wireless transmitter
- Available in High Gloss Black or High Gloss White
Purpose-Built for Home Cinema
Unlike REL's acclaimed Serie T/x models, which are designed to excel in both music and cinema, the HT/1205 MKII has been developed exclusively for high-performance home theatre applications. Every aspect of its design prioritises dynamic impact, rapid transient response and effortless reproduction of low-frequency effects (LFE).
The result is a subwoofer capable of reproducing explosive action sequences, orchestral movie scores and immersive Atmos soundtracks with exceptional authority while remaining controlled and articulate.
More Output, Greater Scale
Positioned above the HT/1003 MKII, the HT/1205 MKII offers greater displacement, increased amplifier power and deeper bass extension. Its larger 12-inch CarbonGlas™ driver moves significantly more air, making it particularly well suited to medium and large home cinema rooms.
The redesigned sealed enclosure benefits from improved cabinet proportions inspired by REL's flagship Reference Series, providing excellent rigidity while minimising unwanted resonance.
500W NextGen5 Class D Amplifier
The HT/1205 MKII is powered by REL's latest 500W RMS NextGen5 Class D amplifier. Designed for continuous high-current delivery, it offers exceptional control over the driver while remaining efficient and reliable even during demanding movie sessions.
Combined with REL's analogue input filters and SET-SAFE protection circuitry, the amplifier delivers powerful low-frequency performance with long-term reliability.
CarbonGlas™ Driver Technology
The custom-developed 12-inch CarbonGlas™ driver combines a lightweight glass-fibre cone with a rigid carbon-fibre centre cap. This construction increases stiffness while reducing unwanted cone flex, allowing greater excursion and cleaner bass reproduction even at high listening levels.
The sealed loading further contributes to the fast, accurate bass response that has become a defining characteristic of REL subwoofers.
Flexible Integration
The HT/1205 MKII integrates easily with virtually any modern AV receiver or processor. Dedicated low-level and LFE inputs simplify installation, while stereo and LFE outputs allow multiple subwoofers to be connected for larger Dolby Atmos or dedicated cinema installations.
- Stereo RCA low-level inputs
- Dedicated RCA LFE input
- Stereo RCA outputs
- LFE daisy-chain output
- Compatible with REL HT-Air MKII wireless system (optional)
Premium Cabinet Design
The HT Series adopts REL's latest cabinet architecture, combining a horizontally textured composite enclosure with a beautifully hand-polished five-layer high-gloss lacquer top panel. The understated design integrates discreetly into modern living rooms while reflecting REL's premium manufacturing standards.
Technical Specifications
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Type: Active sealed subwoofer
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Driver: 12" (300 mm) CarbonGlas™ long-throw front-firing driver
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Amplifier: 500W RMS NextGen5 Class D
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Frequency Extension: 22 Hz (-6 dB)
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Inputs: Stereo RCA, LFE RCA
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Outputs: Stereo RCA, LFE RCA (daisy-chain)
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Wireless: Compatible with optional REL HT-Air MKII
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Protection: SET-SAFE fully electronic protection
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Dimensions (W × H × D): 407 × 420 × 431 mm
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Weight: 19.6 kg
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Finishes: High Gloss Black or High Gloss White
REL HT Series Comparison
| Model |
Driver |
Amplifier |
Frequency Extension |
Best For |
Recommended Room Size |
| HT/1003 MKII |
10" |
300W |
24 Hz |
Compact home cinema systems |
Small to medium rooms |
| HT/1205 MKII |
12" |
500W |
22 Hz |
Premium home cinema systems |
Medium to large rooms |
| HT/1510 Predator MKII |
15" |
1,000W Class D |
20 Hz |
Reference cinema installations |
Large dedicated rooms |
Ideal For
- Medium to large home cinema rooms
- Dolby Atmos, DTS:X and immersive surround systems
- AV receivers from Integra, Onkyo.
- Movie enthusiasts seeking deep, controlled cinematic bass
- Gaming systems requiring powerful low-frequency effects
- Multi-subwoofer home theatre installations
Why We Selected This Product
At ExclusivIT, we value products that combine technical excellence with practical system integration. The REL HT/1205 MKII achieves an excellent balance between output capability, compact dimensions and bass precision, making it particularly attractive for premium living-room cinemas and dedicated home theatres.
Its sealed cabinet design delivers bass that is both powerful and controlled, while the robust amplifier and CarbonGlas™ driver ensure effortless performance during demanding film soundtracks. For customers seeking a high-quality home cinema subwoofer without stepping into reference-size models, the HT/1205 MKII represents one of the strongest choices in its category.
