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REL Acoustics is renowned for its pursuit of pure, natural sound, creating subwoofers that seamlessly extend the performance of high-end loudspeakers. With an obsessive attention to detail and a philosophy of continual refinement, REL combines precision engineering, premium materials and meticulous craftsmanship to deliver bass with exceptional speed, depth & musicality that reveals the full emotion & scale of every recording.

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REL Acoustics - Serie S Powered Subwoofers

At Soundstage Hi-Fi, we see the REL Acoustics Serie S range as the perfect balance of performance, refinement & musicality. What we love about REL is that they solely make subwoofers, with each one delivering a serious level of bass authority and elevating the performance of high-end hi-fi systems in medium to large listening rooms.

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REL S/550 Subwoofer
REL S/550 Subwoofer
from £2,999.00

Compact Power, Engineered for Precision and Control

The REL S/550 Subwoofer delivers the speed, scale, and authority of Serie S in a more compact form. Powered by a 550-watt Pure Class D amplifier and advanced CarbonAlloy™ drivers, it brings refined dynamics and musical nuance to medium-sized rooms. Equally capable in high-end music systems or immersive home cinemas, S/550 proves that true performance is defined by control, not size.

  • 550-watt Pure Class D Amplifier for fast, articulate bass performance

  • 10" CarbonAlloy Active Driver with 12" down-firing Passive Radiator for depth and speed

  • Optimised for music systems in medium-sized rooms

  • Designed for stereo pairs and line-array configurations


Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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REL S/850 Subwoofer
REL S/850 Subwoofer
from £3,599.00

Hi-Fi+ Award Winners 2026 - Subwoofer

The REL S/850 Subwoofer is engineered for listeners who want uncompromising performance with a refined, musical touch. Drawing on innovations from our Reference line, it pairs an 850-watt Linear Class D amplifier with advanced CarbonAlloy™ drivers to deliver explosive dynamics, clarity, and effortless scale. Equally at home in high-end music systems or immersive home cinemas, S/850 brings control and confidence to medium-to-large rooms.

  • 850-watt Linear Class D Amplifier for fast, controlled power delivery

  • 12" CarbonAlloy™ Active Driver with 12" long-stroke Passive Radiator for depth and speed

  • Optimised for music systems & home cinemas in medium-to-large rooms

  • Designed for stereo pairs and line-array configurations

  • An optional premium wood grille is available. Crafted from natural materials, each grille features unique grain and colour variations

“Using the S/850 in my system enhanced every element of the music…”

Read full Review of REL S/850 by Chris Frankland, Hi-Fi+ Magazine

Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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REL Carbon Special Black Label Subwoofer
REL Carbon Special Black Label Subwoofer
from £4,799.00

Reference Performance, Distilled for Precision & Power

Carbon Special Black Label represents the pinnacle of Serie S in a more compact form, bringing Reference-level technology into a medium-scale chassis without compromise. At its core is a 12" all-carbon fibre driver closely related to the REL No.31 Reference, paired with a more powerful amplifier and increased cabinet volume. The result is breathtaking dynamics, speed, and nuance, delivering commanding bass that feels as refined as it is authoritative.

  • 900-watt Linear Class D Amplifier for effortless dynamics and control

  • 12" Carbon Fibre Active Driver with 12" down-firing Passive Radiator for depth and speed

  • Precision-engineered cabinet and driver design for scale, clarity, and musical nuance

  • Premium wood grille included. Crafted from natural materials, each grille features unique grain and colour variation.

“Adding the Carbon Special to the system creates more space around musicians, widens the soundstage, and lets the music breathe.“ - Chris Frankland, Hi-Fi+ Magazine

Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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REL 212 Black Label Subwoofer
REL 212 Black Label Subwoofer
from £5,499.00

Reference-Grade Power for the Most Demanding Systems

The REL 212 Black Label subwoofer is the ultimate expression of Serie S engineered for listeners who demand absolute scale, speed, and authority without sacrificing musical precision. With four 12" drivers and a 1,000-watt amplifier, it commands the largest rooms and most complex systems with ease. More than brute force, it is a problem-solver at heart: equally at home anchoring reference-grade stereo hi-fi systems.

  • 1,000-watt Linear Class D Amplifier delivering effortless power and control

  • Dual 12" CarbonAlloy™ Active Drivers with dual 12" Passive Radiators for massive surface area and speed

  • Extraordinary scale and dynamics, approaching line-array performance

  • Designed for stereo pairs and large-scale home cinema integration

Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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REL Acoustics - Serie T/x Subwoofers

REL Acoustics Serie T/x is instantly seen as a crisper, fresher, and full upgrade. A faster, more transparent sound system performance awaits you with higher output levels and even greater impact.

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REL T/5x Subwoofer
REL T/5x Subwoofer
£699.00

Surprisingly Deep. Beautifully Discreet. Pure REL Performance.

T/5x delivers expressive, room-filling bass from a compact cabinet that blends effortlessly into any space, visually discreet, sonically transformative.

  • Natural, controlled bass from a 125-watt Class A/B amplifier

  • Fast, agile performance from an 8" FibreAlloy driver

  • Reduced resonance through a rigid laminated plywood cabinet

  • Low-distortion output supported by internal bracing

Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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REL T/7x Subwoofer
REL T/7x Subwoofer
£999.00

Powerful. Balanced. Beautifully Compact.

T/7x blends speed, punch, and refinement, transforming smaller and mid-sized rooms with surprising scale and musical warmth.

  • Dynamic, controlled bass from a 200-watt Class A/B amplifier

  • Fast, detailed response from an 8" FibreAlloy driver

  • Extended presence via a 10" down-firing passive radiator

  • Ideal for music and home cinema systems needing agility and clarity

Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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REL T/9x Subwoofer
REL T/9x Subwoofer
£1,399.00

Bigger Dynamics. Faster Response. Pure REL Musicality.

T/9x delivers powerful, agile bass with expressive dynamics that energise music and home cinema alike. It brings systems to life with effortless speed and clarity.

  • Rich, expressive dynamics from a 300-watt Class A/B amplifier

  • Fast, accurate bass from a 10" FibreAlloy driver

  • Extended depth and scale via a 10" down-firing passive radiator

  • Home Cinema ready with the finesse of a true musical sub

Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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REL T/9x SE Subwoofer
REL T/9x SE Subwoofer
£1,549.00

Elevated Design. Enhanced Performance. Pure Sonic Refinement.

T/9x SE is the pinnacle of the T/x line, crafted for greater clarity, richer dynamics, and a striking visual presence that elevates any system.

  • Natural, expressive bass from a 300-watt Class A/B amplifier

  • Faster, more detailed performance from a 10" FibreCarbon driver

  • Extended depth via a 10" down-firing passive radiator

  • Perfect for premium stereo & home cinema systems

Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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REL Acoustics - Planar Subwoofers

REL Acoustics Planar subwoofers redefine how bass lives within a room, bringing flexibility and performance into perfect balance.

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REL Planar PL-1 Subwoofer
REL Planar PL-1 Subwoofer
from £1,999.00

Precision in a Smaller Form

Planar PL-1 Subwoofer brings true REL performance to smaller and medium-sized rooms where traditional subwoofers often feel intrusive or impractical. Designed to work in close relationship with the wall behind it, PL-1 uses boundary effect coupling to deliver deep, articulate bass from an ultra-thin form that integrates naturally into the living space.

  • 300-Watt Pure Class D Amplifier

  • Dual 6.5” Long-Throw Drivers

  • 10” Boundary-Coupled Passive Radiator

  • Ultra-Thin Cabinet for Near- or On-Wall Placement

  • Built-In Airship Direct Wireless

  • Optional Cart for Flexible Placement

Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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REL Planar PL-2 Subwoofer
from £2,999.00

Maximum Performance. Minimal Space

PL-2 is REL’s solution for spaces where traditional subwoofers do not fit. Designed to work in close relationship with the wall behind it, Planar uses boundary effect coupling to deliver deep, room-filling bass and remarkable scale from an ultra-thin form that occupies little to no floor space.

  • 500-Watt Pure Class D Amplifier

  • 8” FlatPiston Driver

  • 10” Boundary-Coupled Passive Radiator

  • Ultra-Thin Cabinet for Near- or On-Wall Placement

  • Built-In Airship Direct Wireless

  • Optional Cart for Flexible Placement

Category: Subwoofers
Country: US
Manufacturer: REL Acoustics

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How adding a subwoofer to your hi-fi can reveal more of your music

In this video, John Darko plays some classic electronic dub and highlights how its deep, sub-bass-heavy textures are the perfect tool for testing your hi-fi system's low-end performance. Learn why accurate sub-bass reproduction is critical for experiencing the full foundation of dub music, and without a subwoofer, you may be missing up to 20% of your music!

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