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S/812

Serie S

S/812 takes REL’s medium chassis concept to reference-like levels of performance and does so with style, beauty and devastating power. It delivers incredible levels of all ‘round performance for both music and film sound, gives customers a taste of what our reference models offer, and does so at a fraction of the cost.

The All New S/812

Shattering Performance Barriers

For S/812, every aspect of the previous generation’s inner workings were examined without regard to its critical and customer-driven success. We turned a fresh eye to power requirements, driver improvements, and specialty filters, upgrading each to extract all the extra performance possible. All this alongside the cabinet refinements necessary for those upgrades to emerge cleanly. This latest S range is a triumphant development that has exceeded every expectation of our design team.

Our requirements were for far stronger deep bass output between 19-35 Hz, vastly improved theatre dynamics, and an even more open and spacious soundfield which benefits both music and film. We turned to our NextGen5 amplifier, tuned to 800 watts, with huge reserves of power beyond this, added a light film of carbon fibre to the rear of the driver to handle the extra power, and developed two new sets of custom filters to extract the utmost in brute force and spaciousness. Finally, we imbued 812 with the ability to be stacked in 4- or 6-unit line arrays, just like our reference models.

Invisible Upgrades to S/812’s Bass Engine

Pure Carbon Fiber Backing

S/812 required upgrades to its ContinuousCast™ Alloy Cone to allow it to survive the massive power upgrades. To permit its thin, aluminum cone to survive 800 watts and incredibly long stroke, we added an ultra-lightweight backing of pure carbon fibre, strategically placed over portions of the rear surface of the cone. This produces two benefits; it strengthens and stiffens the cone and also eliminates reversion, wherein the backwave inside the cabinet is now prevented from interfering with the main launch of bass into the room. The result is more accurate and far louder deep bass.

There is Nothing Passive About These

Carbon Passive Radiator

Our uniquely tuned passive radiators use special suspensions, now with an additional 30mm of linear travel, to produce performance far beyond conventional subwoofers. Our new SuperProgressive™ passive radiator produces extremely long travel allowing for very loud output while retaining the variable stiffness of its suspension. This allows it to act like a sealed box compact 12” design at low volume and a high output 14” design at its limit.

Warning: Power Amplifier on Steroids

800 watts and Counting

At 800 watts the NextGen5 amplifier is borrowed from our reference models and rocks huge reservoirs of power and current. The 45% increase in power (previous version was 500 watts) is needed to deliver both the profound output levels needed for modern theatre, as well as to produce the deepest bass in a high end 2-channel system. This increase in power is necessitated by our development on the musical front of an all-new circuit termed PerfectFilter™ that balance both frequency extremes.

PerfectFilter performs two seemingly disparate qualities; extending the strong, even response of the extreme low end of bass frequencies while simultaneously opening up air and delicacy in the middle and high frequencies of one’s system. Additionally, we applied customized PureTheatre™ filters to allow S/812 to deliver the most awe-inspiring theatre effects ever offered in a classic REL.

Serie S Line Array

Stacked for Ultimate Performance

In the real world, bass occurs with width, depth and height. By stacking up to three units per side (stereo or theatre main L-R speakers) the proper perspective and height of sonic events are illuminated. This elevates reproduction from conventional stereo or theatre to a floor-to-ceiling panoramic, full scale perspective of each sonic event. Reviewers are lining up to marvel at the transformation of music and film into the full-scale representation that REL Line Arrays uniquely deliver.

Specifications

Type

Front-firing active driver, down-firing passive

Active Driver Size & Material

12 in., 300mm long-throw, Continuous CastAlloy™ cone structure, cast chassis

Passive Radiator Size & Material

12 in., 300mm Carbon/Carbon flat cone structure, steel chassis

Low Frequency Extention

-6dB at 19 Hz

Input Connectors

High Level Neutrik Speakon, Low Level stereo RCA, LFE RCA, LFE XLR

Output Connectors

High Level Neutrik Speakon, LFE RCA, LFE XLR

Power Output

800 watts (RMS)

Amplifier Type

NextGen5 Class D

Wireless Capability

Yes- REL AirShip system [required]. Sold separately.

Protection System

Fully Electronic 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 220 volts operation, 9 Amp 120 volts operation

Dimensions

W x H x D

17.5 x 18 x 20 in. (430 x 455 x 514 mm)

Net Weight

75 lbs. (34 kg)

Finish

Piano Black Lacquer, White Lacquer, 8 coats

Supplied Accessories

Mains Lead

Yes

Neutrik Speakon

Yes (10 Meters Nominal)

Interconnect
Users Manual

Yes

In the interest of product development, REL Acoustics Limited reserve the right to vary these specifications without notice.

Reviews + Awards

“The speakers are allowed to do exactly what it is they need to do and the RELs are kind of an extension of that but its just that you get this impact…It added excitement to everything. It didn’t matter which speaker, we tried several different speakers and it added a tremendous amount of foot tapping, absolute amazement and a mesmerizing quality. It was unreal.” Read More +

The Finest Things
The Absolute Sound Editors’ Choice Award 2022

“This is an excellent subwoofer that’s beautifully designed and fantastically well made. It’s also an impressive performer, delivering exceptional bass in a tight and controlled fashion. The combination of the 12-inch driver and matching 12-inch passive radiator ensures some serious low-end extension, and the amplification has power to spare.” Read More +

Best High End Subwoofer 2020
The Absolute Sound Product of the Year

The REL S/812 is a genuinely impressive subwoofer that manages to combine low-end extension with powerful amplification to produce a performance that’s responsive, controlled and highly effective. This sub goes deep and, even on its own, had absolutely no trouble filling my home cinema with low frequency energy. However, this is no blunt instrument, and the S/812 is capable of astonishing deep bass that’s delivered with a surprising amount of subtlety and grace. Read More +

AV Forums Highly Recommended

There are plenty of cheaper subs, and some can even go nearly as deep as the S/812, but they’re unable to mine such depths while remaining so composed. Good bass shouldn’t dominate, it should be an integral part ofyour cinema soundstage, adding low-frequency impact where needed. This is what the REL S/812 achieves so well – it goes deep with control, shows effortless speed and agility, and can seamlessly blend with your other speakers to enhancing whatever you’re watching. Read More +

Home Cinema Choice Best Buy Award
Colour

Black, White

REL Acoustics S/812 12 inch Front-firing Active Driver, Down-firing Passive Home Subwoofer

View all from this brand

$5,499

Contact us

Contact us for consultation and quotes. Get honest advice from passionate music and HiFi enthusiasts.

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S/812

Serie S

S/812 takes REL’s medium chassis concept to reference-like levels of performance and does so with style, beauty and devastating power. It delivers incredible levels of all ‘round performance for both music and film sound, gives customers a taste of what our reference models offer, and does so at a fraction of the cost.

The All New S/812

Shattering Performance Barriers

For S/812, every aspect of the previous generation’s inner workings were examined without regard to its critical and customer-driven success. We turned a fresh eye to power requirements, driver improvements, and specialty filters, upgrading each to extract all the extra performance possible. All this alongside the cabinet refinements necessary for those upgrades to emerge cleanly. This latest S range is a triumphant development that has exceeded every expectation of our design team.

Our requirements were for far stronger deep bass output between 19-35 Hz, vastly improved theatre dynamics, and an even more open and spacious soundfield which benefits both music and film. We turned to our NextGen5 amplifier, tuned to 800 watts, with huge reserves of power beyond this, added a light film of carbon fibre to the rear of the driver to handle the extra power, and developed two new sets of custom filters to extract the utmost in brute force and spaciousness. Finally, we imbued 812 with the ability to be stacked in 4- or 6-unit line arrays, just like our reference models.

Invisible Upgrades to S/812’s Bass Engine

Pure Carbon Fiber Backing

S/812 required upgrades to its ContinuousCast™ Alloy Cone to allow it to survive the massive power upgrades. To permit its thin, aluminum cone to survive 800 watts and incredibly long stroke, we added an ultra-lightweight backing of pure carbon fibre, strategically placed over portions of the rear surface of the cone. This produces two benefits; it strengthens and stiffens the cone and also eliminates reversion, wherein the backwave inside the cabinet is now prevented from interfering with the main launch of bass into the room. The result is more accurate and far louder deep bass.

There is Nothing Passive About These

Carbon Passive Radiator

Our uniquely tuned passive radiators use special suspensions, now with an additional 30mm of linear travel, to produce performance far beyond conventional subwoofers. Our new SuperProgressive™ passive radiator produces extremely long travel allowing for very loud output while retaining the variable stiffness of its suspension. This allows it to act like a sealed box compact 12” design at low volume and a high output 14” design at its limit.

Warning: Power Amplifier on Steroids

800 watts and Counting

At 800 watts the NextGen5 amplifier is borrowed from our reference models and rocks huge reservoirs of power and current. The 45% increase in power (previous version was 500 watts) is needed to deliver both the profound output levels needed for modern theatre, as well as to produce the deepest bass in a high end 2-channel system. This increase in power is necessitated by our development on the musical front of an all-new circuit termed PerfectFilter™ that balance both frequency extremes.

PerfectFilter performs two seemingly disparate qualities; extending the strong, even response of the extreme low end of bass frequencies while simultaneously opening up air and delicacy in the middle and high frequencies of one’s system. Additionally, we applied customized PureTheatre™ filters to allow S/812 to deliver the most awe-inspiring theatre effects ever offered in a classic REL.

Serie S Line Array

Stacked for Ultimate Performance

In the real world, bass occurs with width, depth and height. By stacking up to three units per side (stereo or theatre main L-R speakers) the proper perspective and height of sonic events are illuminated. This elevates reproduction from conventional stereo or theatre to a floor-to-ceiling panoramic, full scale perspective of each sonic event. Reviewers are lining up to marvel at the transformation of music and film into the full-scale representation that REL Line Arrays uniquely deliver.

Specifications

Type

Front-firing active driver, down-firing passive

Active Driver Size & Material

12 in., 300mm long-throw, Continuous CastAlloy™ cone structure, cast chassis

Passive Radiator Size & Material

12 in., 300mm Carbon/Carbon flat cone structure, steel chassis

Low Frequency Extention

-6dB at 19 Hz

Input Connectors

High Level Neutrik Speakon, Low Level stereo RCA, LFE RCA, LFE XLR

Output Connectors

High Level Neutrik Speakon, LFE RCA, LFE XLR

Power Output

800 watts (RMS)

Amplifier Type

NextGen5 Class D

Wireless Capability

Yes- REL AirShip system [required]. Sold separately.

Protection System

Fully Electronic 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 220 volts operation, 9 Amp 120 volts operation

Dimensions

W x H x D

17.5 x 18 x 20 in. (430 x 455 x 514 mm)

Net Weight

75 lbs. (34 kg)

Finish

Piano Black Lacquer, White Lacquer, 8 coats

Supplied Accessories

Mains Lead

Yes

Neutrik Speakon

Yes (10 Meters Nominal)

Interconnect
Users Manual

Yes

In the interest of product development, REL Acoustics Limited reserve the right to vary these specifications without notice.

Reviews + Awards

“The speakers are allowed to do exactly what it is they need to do and the RELs are kind of an extension of that but its just that you get this impact…It added excitement to everything. It didn’t matter which speaker, we tried several different speakers and it added a tremendous amount of foot tapping, absolute amazement and a mesmerizing quality. It was unreal.” Read More +

The Finest Things
The Absolute Sound Editors’ Choice Award 2022

“This is an excellent subwoofer that’s beautifully designed and fantastically well made. It’s also an impressive performer, delivering exceptional bass in a tight and controlled fashion. The combination of the 12-inch driver and matching 12-inch passive radiator ensures some serious low-end extension, and the amplification has power to spare.” Read More +

Best High End Subwoofer 2020
The Absolute Sound Product of the Year

The REL S/812 is a genuinely impressive subwoofer that manages to combine low-end extension with powerful amplification to produce a performance that’s responsive, controlled and highly effective. This sub goes deep and, even on its own, had absolutely no trouble filling my home cinema with low frequency energy. However, this is no blunt instrument, and the S/812 is capable of astonishing deep bass that’s delivered with a surprising amount of subtlety and grace. Read More +

AV Forums Highly Recommended

There are plenty of cheaper subs, and some can even go nearly as deep as the S/812, but they’re unable to mine such depths while remaining so composed. Good bass shouldn’t dominate, it should be an integral part ofyour cinema soundstage, adding low-frequency impact where needed. This is what the REL S/812 achieves so well – it goes deep with control, shows effortless speed and agility, and can seamlessly blend with your other speakers to enhancing whatever you’re watching. Read More +

Home Cinema Choice Best Buy Award
Colour

Black, White

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