The all-new 212SE, a powerfully wrought design that brings the attack that only 1,000 watts twin long-stroke S/5 12″ bass engines can bring to bear.


3 year warranty

Finance example

£700.00 initial 20% deposit then £155.56 per month for 18 months. Other finance terms available. Finance subject to status



Introducing the all-new 212SE, a powerfully wrought design that brings the attack that only 1,000 watts (1,700 watts peak) twin long-stroke S/5 12″ bass engines, partnered with (2) X 12″ passives can bring to bear.

Double Down

Twin Continuous Cast™ Alloy Bass Engines

To produce their highest output single-box solution, they doubled up on the Continuous CastTM Alloy Bass Engines that bring critical acclaim to Serie S, altering them slightly for this twin front-firing configuration. These twin actives are responsible for 212/SE’s incredible speed and tactility.

Our Continuous CastTM Alloy Cones reduce moving mass while maintaining rigidity, producing far more speed and precision than prior designs. These twin long-stroke 12″ bass engines, partnered with (2) matching 12″ passives provide the speed quality of a REL with a power never felt before. This combination offers the driven surface area of twin 17” drivers in a cabinet just 16” wide.

Sound Beyond Its Size

Dual Continuous Cast Alloy Passive Radiator

The 212/SE uses two matching Continuous Cast Alloy passives that are stiff, lightweight and incredibly well behaved. RELs approach to passive design results in performance more akin to a variable ratio driver size – as more power and deeper bass is demanded, the passive comes to life, gradually expanding the capabilities of the active engines.

The down firing passive produces deep, floor-crawling bass that makes a room shudder. Mounted above the amplifier panel on the rear is the second passive. This unit produces wrap around “atmospheric” bass that adds air and shimmer to the sound. Coupling with either the rear wall or the rear corner of a room allows for bass to develop exceedingly long wavefronts and adds an ease and effortless quality unique to single-box designs.

Command and Control

NextGen3 1,000w Digital Amplifier

Beyond RELs proprietary drivers, the performance of a REL is determined by our unique input filters and amplifiers. 212/SE harnesses a simple filter-type that is very fast—about 8 milliseconds in group delay– to cross out unwanted higher frequencies to our driver. This speed and gentle crossover slopes allow for seamless blending of RELs with the main speakers.

RELs do not include a high pass filter to cross out bass from the main speaker because to do so would generally produce more unwanted effects than the minor benefits such a design confers.212/SE’s power amplifier is a powerful NextGen3 1,000W (1,700 peak) digital amplifier. Their Herculean design allows each driver to output over 110 dB with ease–power enough to drive very large rooms to very high output.

Tech spec


(2) Front-firing active drivers, (1) rear passive, (1) down-firing passive

Active Driver Size & Material

(2) 12 in., 300mm long-throw, Continuous CastAlloy™ cone structure, cast chassis

Passive Radiator Size & Material

(2) 12 in., 300mm Continuous CastAlloy™ cone structure, cast chassis

Low Frequency Extention

-6dB at 19 Hz

Input Connectors

High Level Neutrik Speakon, Low Level stero RCA, LFE RCA, SMA for wireless antenna

Power Output

1,000 watts (RMS)

Amplifier Type

NextGen3 Class D

Wireless Capability

Longbow (Optional), Zero Compression, Individual discrete D/A and A/D Encoders

Dimensions W x H x D

17.5 x 32 x 20 in. (444.5 x 815.5 x 507 mm)

Net Weight

122 lbs. (55.3 kg)


Piano Black Lacquer, 8 coats

For more information click here to visit the REL website


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