REL Acoustics 212 SX (Black) Subwoofer Speaker

212/SX builds on the strengths of the legendary 212/SE. Upgraded alloy drivers with carbon fiber blades are stronger, a new flat passive radiator extends even deeper and our PerfectFilter delivers crushing low bass with greater speed and air, taking 212/SX well beyond its illustrious predecessor.

*The Powerful 212/SX
Quality Meets Quantity

At REL, a deeper understanding of quality underpins everything we do. So, whilst 212/SX thunders and shakes foundations, it also resolves detail and restores midrange warmth to its correct balance. At 1,000 watts with (4) 12 (350mm) drivers, 212/SX drives rooms hard and in multiple modes which allows it to create richer bass everywhere in a room.

Refinements to both our legendary ultra-fast filters and newly developed drivers produces harder slam and brings to life quieter, gentler moments, improving system performance at both extremes. Plays brilliantly with both high end 2-channel and large power theatre applications.

*Double Down
Twin Continuous Cast Alloy Bass Engines

Lightweight carbon fiber blades firmly attached to the rear of each active alloy cone serves to both strengthen the cone and quiet it. The twin 12 (350mm) active drivers now offer an additional 12mm of stroke and also benefit from updated suspension geometry and greater power handling. And a brand-new double-spider, high powered passive unit on the bottom delivers floor rippling low bass. The result is a major step forward in the 212 design, an already brilliant performer now playing louder with greater ease whilst better preserving the tiniest details of air and space with even greater precision.

*Sound Beyond Its Size
Dual Continuous Carbon Passive Radiators

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.

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.

**Specifications
Type
(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, die cast alloy chassis

Passive Radiator Size & Material
Rear: 12 in. (300mm) Continuous CastAlloy cone structure, die cast alloy chassis; Down: 12 in. (300mm) Carbon/Carbon flat cone structure, steel chassis

Low Frequency Extension
-6dB at 18 Hz

Input Connectors
High Level Neutrik Speakon, Low Level (2) RCA, (1) LFE RCA, (1) LFE XLR

Output Connectors
High Level Neutrik Speakon, (1) LFE RCA or (1) LFE XLR**

Power Output
1,000 watts (RMS)

Amplifier Type
NextGen 5 Class D

Wireless Capability
REL AirShip II (sold separately)

Dual Parametric Filter
N/A

Protection System
Fully Electronic Set Safe
Yes

D.C. Fault
Yes

Output Short
Yes

Mains Input Voltage
220-240 volts, 1120-120 volts for certain markets

Fuses
7 Amp semi delay 220 volts operation, 15 Amp semi delay 120 volts operation

Dimensions
W x H x D
14 1/4in., x 33in., x 20 1/4 in., (362 x 838 x 514.5mm)

Net Weight
128 lbs. (58 kg)

Finish
Piano Black Lacquer

Supplied Accessories
Mains Lead
Yes

Neutrik Speakon
Yes (10 Meters Nominal)

Interconnect
N/A

Users Manual
Yes