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The REL Acoustics S/850 is a 12-inch powered subwoofer from REL's flagship S Series, built around a long-throw carbon-fiber driver and a 1,000-watt NextGen3 Class D amplifier. REL rates it down to 19 Hz, and its high-level input takes the signal from your main amplifier so the sub blends with your speakers rather than sitting apart from them. It suits two-channel listeners and home theater owners who want deep bass that stays fast and tuneful. Against cheaper ported subs it gives up some raw output per dollar but gains integration and control; the Absolute Sound and Hi-Fi+ both singled it out with awards.
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Award panels and owners treat the S/850 as a reference sub that keeps pace with music while still hitting hard on film soundtracks. Most praise centers on integration and speed rather than brute output.
The REL Acoustics S/850 is a 12-inch powered subwoofer from REL's S Series. It pairs a single long-throw carbon-fiber driver with a 1,000-watt NextGen3 Class D amplifier. Bass extends down to 19 Hz.
The carbon-fiber cone is stiff and lightweight, and the cabinet is sealed. REL's high-level input lets the subwoofer connect to the output of your main amplifier, so it blends with your existing speakers.
It can be added to a two-channel music system or a surround sound home theater, and it suits medium and large rooms. Multiple S/850 units can be stacked together for larger installations.
