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Great Britain's most acclaimed sub-bass systems

REL Acoustics of Great Britain designs and manufactures high quality, award-winning sub-bass systems for use in two-channel and multi-channel music and multi-channel home theatre systems.

REL Acoustics designs and builds specialised sub-bass systems that do just this. It doesn’t build loudspeakers, it only builds sub-bass systems. For over ten years, the evolving range of REL products has delighted audiophiles and cinephiles around the world, and received universal critical acclaim. Its superiority remains unchallenged, proving that genuine sub-bass is a rare commodity, and only available from a specialist.

     

Prices are for guidance only, In-store prices could be lower please call for details.

T SERIES

The all-new T-Series™, from REL, delivers exceptional low bass performance, backed by rugged build quality and the attractive styling of our classic offerings at more affordable prices.

T5 Sub-Bass System

The REL T5 delivers the exceptional low-bass performance, rugged build quality and unique design of larger REL models at a more affordable price. The form of the T5 is a simple minimalist cube elevated by four aluminum feet. It is deceptively small and compact blending in beautifully with its surroundings and is available in your choice of Gloss Black or White lacquer. Bass output is powerful and robust considering the T5's compact dimensions and the T5 features a full REL connectivity suite. Just like its larger brothers, the T5 can be used to wonderful benefit to underpin both two-channel and multi-channel film sound systems. A true Class AB power amplifier topology with 125 Watt output is capable of reproducing the dynamics and extension with conviction and authority.

The T5 brings REL performance to those seeking high quality sound in a compact and affordable package.

Specifications  
Type Closed box, down firing woofer
Drive Unit 8 in., 200mm long throw, steel chassis
Lower Frequency Response in Room 23 Hz at -6 dB

Input Connectors Hi Level Neutrik Speakon, Lo Level single phono, LFE phono 
Input Impedance: Hi Level: 150k, Lo Level: 10k, .1/ LFE: 33k Ohms 

Gain Control Range 80 dB
Power Output 125 Watts (RMS)
Phase Switch Yes, 0 or 180 degrees

Amplifier Type Class A / B
Protection System Fully Electronic with SET-SAFE: Yes
D.C. Fault Yes
Output Short Yes
Mains Input Voltage 220-240 volts, 110-120 volts for certain markets
Fuses 1.6 Amp semi delay 230 volts operation, 3.15 Amp semi delay 115 volts operation

Dimensions (W x H x D)
Including Feet and Rear Panel Controls 10.5 x 12 x 11.75 inches (267 x 302 x 297 mm)

Net Weight 26 lbs. (11.7 kg)

Finishes: Piano Black & Piano White
Suggested Selling Price for guidance: £425.00

T3

Style
The design of T-Series is guided by its high performance goals. The perimeter rails that define and support the unit are necessary to provide sufficient elevation to allow proper release of the low bass pressure wave. The boldly curved dome of the grille is necessitated by the ultra long throw (ULT™) driver’s travel. Quality abounds, such as the polished T-304 stainless steel bolts employed. Such attention to detail is what has made the REL name synonymous with quality.

Performance
Simply put, we firmly believe that REL Sub-Bass Systems should be matched to the performance capabilities of the system and to the room volume in which the system will be performing. The three-model offering allows a broad range of main speaker system matching. Consult your REL Specialist for recommendations.

Value
These are genuine REL Sub-Bass Systems capable of supplying effortless, extensional very low bass to underpin high quality audio systems. Although they are offered at prices that compare favorably with competitors’ offerings that often emphasize one aspect over another (output at the expense of quality, or extension at the expense of size), we believe the T-Series offers the best balance of musical and design virtues currently available at this price.

Neutrik Speakon™ high-level input for direct connection to amplifier All connections and control functions are located on rear panel Over current, over temperature and under voltage protection Black Ash Gloss or Cherry finish

Specifications

• Enclosure Type - Closed box with heavy-duty 8” ULT active driver and 8” ULT passive radiator
• Variable Crossover - 30-120 Hz
• Input Connectors RCA low level input, .1/LFE input with separate volume control
• Amplifier Type - 150W high current Class AB
• Protection - Over Current, Over Voltage
• Dimensions (WxHxD)13.5 (h) x 11.8 (w) x 14 (d) in 343 (h) x 300 (w) x 356 (d) mm (height includes feet, depth includes grille)
• Net Weight - 27 lbs / 12.5 kg

Suggested Selling Price for guidance Black Ash, Cherry or White £450.00

T2

Specifications

• Enclosure Type - Closed box with heavy-duty 8” ULT active driver and 10” ULT passive radiator
• Variable Crossover - 30-120 Hz
• Input Connectors RCA low level input, .1/LFE input with separate volume control
• Amplifier Type - 200W high current Class AB
• Dimensions (WxHxD)14.75 (h) x 13.2 (w) x 15.5 (d) in 375 (h) x 335 (w) x 394 (d) mm (height includes feet, depth includes grille)
• Net Weight - 33 lbs / 15 kg
  

Suggested Selling Price for guidance Black Ash, Cherry or White £550.00

T1

Specifications

• Enclosure Type Closed box with heavy-duty 10” ULT active driver and 10” ULT passive radiator
• Variable Crossover - 30-120 Hz
• Input Connectors RCA low level input, .1/LFE input with separate volume control
• Amplifier Type - 300W high current Class AB
• Protection - Over Current, Over Voltage
• Dimensions - (WxHxD)15.75 (h) x 14.2 (w) x 16.5 (d) in 400 (h) x 361 (w) x 419 (d) mm (height includes feet, depth includes grille)
• Net Weight - 40 lbs / 18 kg

Suggested Selling Price for guidance Black Ash, Cherry or White £675.00

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R SERIES

R205

REL Acoustics R-Series represents the perfect intersection of style, performance, and size. R-Series is intended to provide its owner with a high performance platform that outperforms the competition, yet provides a level of fit, finish and thoughtfulness long absent from the category.

Consider the previously challenging detail of adjusting performance parameters of a sub bass unit. On most competitors’ models, this requires bending over the unit whilst attempting to read the labels on the rear panel upside down! In contrast, the exquisitely crafted control box –sited just below the main body of the R– allows for easy adjustment. Simply remove the thick frosted safety glass security panel (a full 8mm thick), make a few simple adjustments and you’re done.

No phony computers! No fussing about with a microphone and alleged optimization programs that attempt to crudely approximate real world performance for REL. They offer simple, finely calibrated instrumentation-grade controls that make intuitive sense and are easy to operate. Need a higher volume level? We suggest turning up the control cleverly labeled “Hi-Lo Level”. Crossed over just a tad too high for your tastes? Turn down the control labeled “Crossover”. It really is that simple. Many owners report that it took longer to extract the unit from its excellent packing than to set-up their REL.

Power with Control
R-Series represents our first use of digital amplifiers; REL having determined that until recently Class-D amps did not offer sufficient control to meet our standards. However, recent advances in the state of the amplifier art have resulted in a range of amplifiers that demonstrate excellent speed and control, especially in the low bass. When partnered with new drivers that are higher in performance, yet lighter in weight than their predecessors, the result is a new level of performance for the category.

Unique R-Series Features
REL R-Series are not traditional subwoofers, but rather true sub-bass systems. The R-Series is designed to augment the performance of “full range” speaker systems and to provide linear response down to below 20Hz. Properly set-up and positioned, they will take advantage of physics and room acoustics to provide deep pressurization as no other subwoofer can. Unique to the REL are its connectivity options. For two-channel audio systems a high-level connection, using the enclosed cable with the Neutrik Speakon connector, is always the first choice. By connecting to the amplifier’s speaker outputs the sonic signature of the entire amplification chain is folded into the signal for the sub, thereby keeping timing and timbre cues consistent. Additionally, a low-level connection using RCA inputs is always an option, should high-level connection not be possible. In a surround system where both high-level and low-level connection is used, the REL R-Series provides individual inputs and gain control for both the Neutrik high level and .1/LFE input allowing accurate signal blend and balance.

All R-Series models feature a front mounted control box where gain, crossover and phase adjustment reside. The location of these controls allow for easy access when performing set-up and a glass security panel can be affixed to prevent tampering. Additionally, this box can be removed from the enclosure along with the feet to effectively reduce the enclosure’s size. This is most useful in a custom installation situation.

Specifications

• Enclosure Type - Closed box loading
• Roll Off - 25Hz to 100Hz
• Input Connectors Neutrik Speakon - High Level - Phono - LFE - Phono - LINE
• Amplifier Type - Switching Amplifier
• Input Impedance - High Level - Low Level - Line Level - 150K O (Two Channel Unbalanced) - 33K O (LFE Unbalanced) - 10K O (Unbalanced)
• Input Sensitivity - Low Level - High Level - 40db - 22dB
• Drive Unit - 10" Heavy Duty Long Throw
• Power Output - 200 Watts RMS
• Phase - 0 and 180 Degrees
• Mains Input - 110 or 230 Volts (Depending on country)
• Protection - Over Current, Over Voltage
• Mains Fuses - 2.5 Amp semi delay for 230 Volts - 3.15 Amp semi delay for 110 Volts
• Dimensions (WxHxD)- 11.5 x 13.25 x 12.5 including feet, controls and grille
• Net Weight - 30.5 lbs / 13.8 kg
• Gross Weight - 34.8 lbs / 15.8 kg
• Supplied Accessories - Mains Lead - Neutrik Speakon Interconnect (High Level) - Spikes - User Manual The all-new T-Series™, from REL, delivers exceptional low bass performance, backed by rugged build quality and the attractive styling of our classic offerings at more affordable prices.

Suggested Selling Price for guidance
Piano Black Lacquer £695.00
Cherry, Oak or Rosenut £795.00

 

 

R305

• Specifications
• Enclosure Type - Closed box loading
• Roll Off - 25Hz to 100Hz
• Input Connectors Neutrik Speakon - High Level - Phono - LFE - Phono - LINE
• Amplifier Type - Switching Amplifier
• Input Impedance - High Level - Low Level - Line Level
• 150K O (Two Channel Unbalanced) - 33K O (LFE Unbalanced) - 10K O (Unbalanced)
• Input Sensitivity - Low Level - High Level - 40dB - 22dB
• Drive Unit - 10" Heavy Duty Long Throw Cast Frame
• Power Output - 300 Watts RMS
• Phase - 0 and 180 Degrees
• Mains Input - 110 or 230 Volts (Depending on country)
• Protection - Over Current, Over Voltage
• Mains Fuses - 2.5 Amp semi delay for 230 Volts - 3.15 Amp semi delay for 110 Volts
• Dimensions (WxHxD) - 12.5 x 14.25 x 13.5 inches including feet, controls and grille
• Net Weight - 41 lbs / 18.6 kg
• Gross Weight - 46.4 lbs / 21.1 kg
• Supplied Accessories - Mains Lead - Neutrik Speakon Interconnect (High Level) - Spikes - User Manual REL Acoustics R-Series represents the perfect intersection of style, performance, and size. R-Series is intended to provide its owner with a high performance platform that outperforms the competition, yet provides a level of fit, finish and thoughtfulness long absent from the category.

Suggested Selling Price for guidance
Piano Black Lacquer £825.00
Cherry, Oak or Rosenut £925.00 

 

R505

Specifications

• Enclosure Type - Closed box loading
• Roll Off - 25Hz to 100Hz
• Input Connectors Neutrik Speakon - High Level - Phono - LFE - Phono - LINE
• Amplifier Type - Switching Amplifier
• Input Impedance - High Level - Low Level - Line Level
• 150K O (Two Channel Unbalanced) - 33K O (LFE Unbalanced) - 10K O (Unbalanced)
• Input Sensitivity - Low Level - High Level - 40dB - 22dB
• Drive Unit - 12" Heavy Duty Long Throw Cast Frame
• Power Output - 500 Watts RMS
• Phase - 0 and 180 Degrees
• Mains Input - 110 or 230 Volts (Depending on country)
• Protection - Over Current, Over Voltage
• Mains Fuses - 2.5 Amp semi delay for 230 Volts - 3.15 Amp semi delay for 110 Volts
• Dimensions (WxHxD) - 15 x 16.75 x 16.5 inches including feet, controls and grille
• Net Weight - 58 lbs / 26.3 kg
• Gross Weight - 64.7 lbs / 29.4 kg
• Supplied Accessories - Mains Lead - Neutrik Speakon Interconnect (High Level) - Spikes - User Manual

Suggested Selling Price for guidance
Piano Black Lacquer £1050.00
Cherry, Oak or Rosenut £1150.00

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B SERIES

With B-Series, an entirely new generation of high-end music and film sound devotees are poised to revel in the fruits of REL’s labours. These newest offerings are superbly crafted to redefine sub-bass performance across both the most sophisticated music or film sound systems with equal facility.

The combination of an ultra-powerful new range of bass-engines, mounted forward firing, and with a patented twin-chamber exhaust, venting out the bottom produce truly prodigious low frequency output with startling speed. Last but not least, that most British of all virtues – quality is present everywhere one looks.

Model B3

This beautifully finished unit measures less than 22” high, yet backs up its looks with performance that must be felt, as much as heard. True sub-20Hz in room response is attainable at high output levels! As with all B-series, flexibility of placement is a high design priority. The ideal blend of power and grace.

Quality isn’t everything; it’s the only thing. All B-Series feature 24 crossover frequencies from 22-96Hz, using precision trimmed circuits. REL’s unique design permits operation of both high-level support of main speakers and .1 channel from one B3–something no other manufacturer offers. Massive power supplies and outstanding build quality are the cornerstones of REL’s reputation.

Specifications

• Enclosure Type - ARM Loaded with Port
• Port Diameter: 2.84 inches
• Input Connectors 2-Neutrik Speakon / 2-RCA Phono
• Gain Control Range: - 80dB
• Amplifier Type: DC Coupled MOSFET
• Input Impedance: 100k Ohms, High Level, Two-Channel Unbalanced-100k Ohms, High Level, Single-Channel Balanced-10k Ohms, Low Level (LFE) Black 0dB, Red +12dB
• Drive Unit: 10 inch, Long Throw
• Low Frequency Response: 18Hz In Room at –6dB
• Power Output: 200 Watts
• Phase: 0 and 180 degrees
• Dimensions (WHD): 13.5 x 22 x 16.5 in. 343 x 559 x 419 mm
• Weight: 66 lbs., 30kg REL Acoustics R-Series represents the perfect intersection of style, performance, and size. R-Series is intended to provide its owner with a high performance platform that outperforms the competition, yet provides a level of fit, finish and thoughtfulness long absent from the category.

Suggested Selling Price for guidance
Black Brittex £1220.00
Cherry, Maple or Rosenut £1320.00

 
Model B2

• Specifications
• Enclosure Type-Balanced ARM Loaded with Port
• Port Diameter: 3.95 inches
• Input Connectors 2-Neutrik Speakon / 2-RCA Phono / 1-XLR
• Gain Control Range: 80dB
• Amplifier Type: DC Coupled MOSFET
• Input Impedance:100k Ohms, High Level, Two-Channel Unbalanced-100k Ohms, High Level, Single-Channel Balanced-10k Ohms, Low Level (LFE), Black 0dB, Red +12dB-10k Ohms, Low Level, Single Channel Balanced
• Drive Unit: 10 inch, Long Throw Heavy-Duty Cast Frame
• Low Frequency Response: 16Hz In Room at –6dB
• Power Output: 300 Watts
• Phase: 0 and 180 degrees
• Dimensions (WHD): 13.5 x 24 x 16.5 in. 343 x 610 x 410 mm
• Weight: 83 lbs., 38 kg
• With B-Series, an entirely new generation of high-end music and film sound devotees are poised to revel in the fruits of REL’s labours. These newest offerings are superbly crafted to redefine sub-bass performance across both the most sophisticated music or film sound systems with equal facility.

Suggested Selling Price for guidance
Black Brittex £1530.00
Cherry, Maple or Rosenut £1630.00  


 
Model B1

Specifications

• Enclosure Type Balanced ARM Loaded with Port
• Port Diameter: 4.75 in., 121 mm
• Input Connectors 2-Neutrik Speakon / 2-RCA Phono / 1-XLR
• Gain Control Range: 80dB
• Amplifier Type: DC Coupled MOSFET
• Input Impedance: 100k Ohms, High Level, Two-Channel Unbalanced-100k Ohms, High Level, Single-Channel Balanced-10k Ohms, Low Level (LFE), Black 0dB, Red +12dB-10k Ohms, Low Level, Single Channel Balanced
• Drive Unit: 12 inch, Long Throw Heavy-Duty Cast Frame
• Low Frequency Response: 13Hz In Room at –6dB
• Power Output: 500 Watts
• Phase: 0 and 180 degrees
• Dimensions (WHD): 15.25 x 26.5 x 18.5 in. / 388 x 673 x 470 mm
• Weight: 97 lbs., 44 kg Enclosure Type-Balanced ARM Loaded with Port

Suggested Selling Price for guidance
Black Brittex £1890.00
Cherry, Maple or Rosenut £2040.00

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G1 SERIES

 
G1
REL Acoustics Ltd. introduces the all-new G1 Sub-Bass System
The G1 features REL’s most recent exposition on amplifier topology, driver technology and operational interface. Housed within a sumptuous furniture-grade enclosure finished in gloss piano black lacquer resides a massive 12” long-throw carbon fibre driver, 600 watt Class A/B power amplifier and the award-winning REL connectivity suite providing the most flexible and sonically transparent integration, weight and low-frequency authority to the main loudspeaker system. Employing an extensively braced enclosure sculpted in a truly sensuous shape, the G1 is massive, yet elegant. While it is physically commanding, its finely tuned shape finished in furniture-grade hand-rubbed high-gloss piano black lacquer will blend seamlessly into any interior environment. REL’s vast engineering experience is evident in the G1’s power amplifier. Featuring a linear Class A/B topology employing no less than six MOS-FET devices, massive power supplies and transformer there is no mistaking the G1 with a common subwoofer. Execution of build and component part choice is first-class resulting in extensive ruggedness and reliability. Mated to this massive power plant is a tight-wind carbon fibre 12” drive unit capable of an exceptional pistonic stroke of 1-3/4 inches! This costly drive unit was necessary in order to generate the ultimate in loudness required to underpin today’s great high-performance main loudspeakers.

The REL connectivity suite allows for using both high and low level input options. Exclusive to REL is the ability to blend and individually control both signals that, for example is useful in a home cinema system where the sub-bass system must reproduce both main speaker and .1/LFE low frequency content. Additionally, Class-D main power amplifiers cause no problem to the G1 thanks to REL-D™, a proprietary circuit that creates the proper grounding environment for most Class-D amplifiers.
Adding to the overall user experience is the G1’s IR remote control. The unique round disc-shaped remote features three rotary encoder dials that control all adjustments for HI/LO Level, Crossover Frequency and .1/LFE Level. Phase, and Settings Lock are controlled via toggle switches. Located on the bottom front of the G1’s enclosure is a large, bright LED readout providing a visual indication of all the G1’s current settings. Now, for the first time, setup and adjustment can be done from the comfort of you listening position.

When too much is not enough, the REL G1 has included connectivity to allow multiple units to be used in conjunction with one another either in stereo pairs or vertically stacked towers. Doing so results in huge wave fronts of air, conveying the true power and majesty of a musical or film sound event effortlessly.

Specifications  
Type: Closed box, front firing woofer 
Drive Unit:  12 in., 300mm long throw, carbon fiber cone
Lower Frequency Response in Room:  15 Hz at -6 dB
Input Connectors:  Hi Level Neutrik Speakon, Lo Level stereo phono, LFE phono
Input Impedance
Hi Level: 150k
Lo Level: 10k
LFE: 1/ 10k Ohms
Gain Control Range:  80 dB
Power Output:  600 Watts (RMS)
Phase Switch:  Yes, 0 or 180 degrees
Amplifier Type:  Class A / B
Protection System:  Fully Electronic with SET-SAFE: Yes
D.C. Fault:  Yes
Output Short:  Yes
Mains Input Voltage:  220-240 volts, 110-120 volts for certain markets
Fuses:  5 Amp semi delay 230 volts operation
           10 Amp semi delay 115 volts operation
Dimensions (WHD): 22.5 x 18.25 x 26 inches (571.5 x 463.6 x 660 mm) 
Including Feet and Rear Panel Controls 
Net Weight:  108 lbs. (49 kg)
Finish: Gloss Piano Black Lacquer

Suggested Selling Prices for guidance £2999.00

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REFERENCE RANGE

STENTOR III

Reference class sub-bass system designed for use with very high quality stereo and multi-channel audio systems in larger rooms.

• True 300W (continuous) discrete, direct-coupled MOSFET amplifier
• Downward-firing long-throw 250mm (10”) very heavy duty “Volt” driver, die-cast chassis
• Refined ABC® variable crossover adjustment in 24 musically correct semi-tone increments between 24Hz-106Hz.
• Acoustic Resistive Matrix (ARM) loading for smoother bass response
• Four position mode selector: line/LFE (0 degrees phase and 180 degrees phase)
• Audiophile grade toroidal transformer
• Gas-tight Neutrik high level connection for long-term consistency of sound quality
• High quality, panel-mounted twin phono inputs at 0dB and +12dB (low level)
• High and low level balanced inputs (Neutrik/XLR)
• Totally discrete input circuitry for high and low level inputs
• Separate volume controls for high and low-level adjustment
• Simultaneous connection of high and low level sources
• Set-Safe® audibly transparent driver protection
• Balanced-bridge power supply
• 8x ultra-rugged output devices
• Double thickness, double-sided glass-fibre board with plated-through holes
  IEC power input socket - no captive leads for installation flexibility
• Hand-built in Great Britain, three year worldwide warranty

Specifications

• System Type-ARM loaded cabinet with ABC® semi-tone variable bass filter. 70 litre.
• Lower Frequency response-In room -6dB: 11Hz
• Amplifier Input impedance High level 100 kohm
• Gain Control Range-Low level 10 kohm-80dB
• Drive unit impedance-8 ohm
• Mains input voltage-115 V 50/60 Hz or 230 V 50/60 Hz, subject to country
• Dimensions WxHxD mm (inches)incl. feet and rear panel controls 650x580x450 (25.61 x 22.85 x17.73)
• Weight Kg (lbs) 55 (121.25)

Black Ash, Cherry, Light Oak, Rosenut, Walnut
Suggested Selling Price for guidance £3999.00 

 

 

STUDIO III

Reference class sub-bass system designed for use with the very finest stereo and multi-channel audio systems in larger rooms.

• True 500W (continuous) discrete, direct-coupled MOSFET amplifier
• 2x downward-firing long-throw 250mm (10”) very heavy duty “Volt” drivers , die-cast chassis
• Refined ABC® variable crossover adjustment in 24 musically correct semi-tone increments between 24Hz-106Hz.
• Acoustic Resistive Matrix (ARM) loading for smoother bass response
• Four position mode selector: line/LFE (0 degrees phase and 180 degrees phase)
• Audiophile grade toroidal transformer
• Gas-tight Neutrik high level connection for long-term consistency of sound quality
• High quality, panel-mounted twin phono inputs at 0dB and +12dB (low level)
• High and low level balanced inputs (Neutrik/XLR)
• Totally discrete input circuitry for high and low level inputs
• Separate volume controls for high and low-level adjustment
• Simultaneous connection of high and low level sources
• Set-Safe® audibly transparent driver protection
• Balanced-bridge power supply
• 8x ultra-rugged output devices
• Double thickness, double-sided glass-fibre board with plated-through holes
• IEC power input socket - no captive leads for installation flexibility
• Hand-built in Great Britain, three year worldwide warranty

Specifications

• System Type-ARM loaded cabinet with ABC® semi-tone variable bass filter. 110 litre.
• Lower Frequency Response (in room -6dB): 9Hz
• Amplifier Input impedance High level 100 kohm
• Gain Control Range Low level 10 kohm 80dB
• Drive unit impedance 8 ohm
• Mains input voltage 115 V 50/60 Hz or 230 V 50/60 Hz, subject to country
• Dimensions WxHxD mm (inches)incl. feet and rear panel controls 685x617x567 (26.99 x 24.31 x 22.34)
• Weight Kg (lbs) 93 (205.03)

Black Ash, Cherry, Light Oak, Rosenut, Walnut
Suggested Selling Price for guidance £5999.00