REL Acoustics S/812 Active Subwoofers

Our Take 

Delivering breathtaking performance for both music and film, this subwoofer offers a glimpse of our reference-level excellence at a fraction of the cost. Powered by an 800-watt NextGen 5 Class D amplifier, it provides robust and efficient power to drive immersive sound. Equipped with a 12-inch Continuous CastAlloy™ active driver and a 12-inch down-firing passive driver, it delivers deep, precise bass and rich, dynamic audio that fills any room with clarity and impact. This design ensures exceptional performance for audiophiles and home theater enthusiasts alike.

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 NextGen 5 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.

Product Details 

The S/812 elevates REL’s medium chassis concept to reference-level performance, combining style, beauty, and devastating power. It delivers exceptional all-around performance for both music and film sound, offering customers a taste of what REL’s reference models provide—at a fraction of the cost. Designed to produce far stronger deep bass output between 19-35 Hz, vastly improved theatre dynamics, and a more open, spacious soundfield, the S/812 benefits both music and film experiences. Central to this is the NextGen 5 amplifier, tuned to 800 watts with substantial power reserves, enhanced by a light carbon fiber film on the rear of the driver to handle increased power demands. Two new sets of custom filters maximize brute force and spaciousness, while the S/812's capability to be stacked in 4- or 6-unit line arrays mirrors the flexibility of REL’s reference models, making it a powerful and versatile addition to any high-performance audio setup

Tech Specs

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