The REL S/812 is the latest model in the company’s Serie S line-up of subwoofers. This sealed unit includes a forward-firing 12-inch driver, combined with a 12-inch downward-firing passive radiator for deeper bass extension. It sports a revised cabinet, sits on rails instead of feet, uses an upgraded 800W NextGen5 amplifier for more power, and has a redesigned ultra-lightweight ContinuousCast alloy cone to handle the increased excursion. It also has very useful carry handles on the sides, which make installation easier.
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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. It would be nice if REL included a remote control, but otherwise this highly sophisticated sub is hard to fault. It’s certainly not cheap, but when you consider the build quality, features and performance, the S/812 is a definite high-end winner.