{"product_id":"rel-acoustics-s-550-10-inch-powered-subwoofer","title":"REL Acoustics S\/550 10 Inch Powered Subwoofer","description":"\u003cp\u003e\u0026lt;h2 style=\"font-size:1.25em;margin:0 0 0.35em 0;\"\u0026gt;What You Need to Know\u0026lt;\/h2\u0026gt;\u003c\/p\u003e\n\u003cp\u003e\u0026lt;p style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u0026gt;The REL S\/550 is the gateway to the legendary Serie S\u0026amp;mdash;a subwoofer built for full-range loudspeakers and reference systems that demand effortless low-end support without sacrificing agility or tone. Its 10-inch CarbonAlloy active driver, capped with pure carbon fiber in a die-cast alloy chassis, sharpens attack and smooths decay, while a 12-inch carbon\/carbon down-firing passive radiator extends response to a subterranean 19Hz with no port noise or bloat. A 550-watt RMS Linear Class D amplifier keeps it composed, tight, and perfectly timed\u0026amp;mdash;whether tracking a cello's low register or the thunder of an action scene.\u0026lt;\/p\u0026gt;\u003c\/p\u003e\n\u003cp\u003e\u0026lt;p style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u0026gt;Integration is the REL signature: the 100%-analog High-Level Speakon input (32-foot cable included) feeds the sub the same signal as your main speakers, with premium polypropylene input-filter capacitors borrowed from REL's Reference designs. Low-level RCA plus LFE on both RCA and XLR cover theater processors, and matching outputs support stereo pairs and stackable Line Array configurations\u0026amp;mdash;mounting hardware is in the box. Finished in eight coats of Piano Black or Gloss White lacquer.\u0026lt;\/p\u0026gt;\u003c\/p\u003e\n\u003cp\u003e\u0026lt;h2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;\"\u0026gt;Features \u0026amp;amp; Specifications\u0026lt;\/h2\u0026gt;\u003c\/p\u003e\n\u003cp\u003e\u0026lt;p style=\"margin:0 0 0.45em 0;line-height:1.5;\"\u0026gt;\u0026lt;strong\u0026gt;10\" CarbonAlloy Driver\u0026lt;\/strong\u0026gt; \u0026amp;mdash; Carbon-fiber-capped cone for startling transient speed and low coloration.\u0026lt;\/p\u0026gt;\u003cbr\u003e\u0026lt;p style=\"margin:0 0 0.45em 0;line-height:1.5;\"\u0026gt;\u0026lt;strong\u0026gt;12\" Down-Firing Passive Radiator\u0026lt;\/strong\u0026gt; \u0026amp;mdash; Carbon\/carbon construction extends depth to 19Hz without port artifacts.\u0026lt;\/p\u0026gt;\u003cbr\u003e\u0026lt;p style=\"margin:0 0 0.45em 0;line-height:1.5;\"\u0026gt;\u0026lt;strong\u0026gt;550W RMS Linear Class D\u0026lt;\/strong\u0026gt; \u0026amp;mdash; Power-amp-grade reserves that stay composed under any demand.\u0026lt;\/p\u0026gt;\u003cbr\u003e\u0026lt;p style=\"margin:0 0 0.45em 0;line-height:1.5;\"\u0026gt;\u0026lt;strong\u0026gt;High-Level Speakon Input\u0026lt;\/strong\u0026gt; \u0026amp;mdash; REL's signature connection with 32-foot cable included; Reference-grade analog filters.\u0026lt;\/p\u0026gt;\u003cbr\u003e\u0026lt;p style=\"margin:0 0 0.45em 0;line-height:1.5;\"\u0026gt;\u0026lt;strong\u0026gt;Line Array Ready\u0026lt;\/strong\u0026gt; \u0026amp;mdash; Stackable design with mounting hardware included for reference-level systems.\u0026lt;\/p\u0026gt;\u003c\/p\u003e\n\u003cp\u003e\u0026lt;h2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;\"\u0026gt;Specifications\u0026lt;\/h2\u0026gt;\u003c\/p\u003e\n\u003cp\u003e\u0026lt;ul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Type: Front-Firing Active Driver with Down-Firing Passive Radiator (Serie S)\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Active Driver: 10\" (250mm) Long-Throw CarbonAlloy Cone, Die-Cast Alloy Chassis\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Passive Radiator: 12\" (305mm) Carbon\/Carbon Flat Cone\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Low-Frequency Extension: -6dB at 19Hz\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Amplifier: 550 Watts RMS, Linear Class D\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Inputs: High-Level Neutrik Speakon, Low-Level (2) RCA, LFE RCA, LFE XLR\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Outputs: High-Level Speakon, Low-Level RCA, LFE RCA or XLR (for pairs and arrays)\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Wireless: REL AirShip Direct Compatible (sold separately)\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Included: 32' Neutrik Speakon Cable, Cloth Grille, Line Array Mounting Hardware\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Dimensions: 17.5\"W x 14.75\"H x 19.75\"D\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Weight: 68 lbs\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Finish: Piano Black Lacquer or Gloss White Lacquer (8 coats)\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Warranty: 3 Years Parts \u0026amp;amp; Labor\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;Sold By: Each\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;\/ul\u0026gt;\u003c\/p\u003e\n\u003cp\u003e\u0026lt;h2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;\"\u0026gt;Why Audio Advisor?\u0026lt;\/h2\u0026gt;\u003c\/p\u003e\n\u003cp\u003e\u0026lt;ul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;\u0026lt;strong\u0026gt;40+ Years of Expertise\u0026lt;\/strong\u0026gt; \u0026amp;ndash; Helping music lovers build better systems since 1981.\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;\u0026lt;strong\u0026gt;60-Day Money-Back Guarantee\u0026lt;\/strong\u0026gt; \u0026amp;ndash; Hear it in your own system with confidence.\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;\u0026lt;strong\u0026gt;Real Product Experts\u0026lt;\/strong\u0026gt; \u0026amp;ndash; Friendly advice before and after your purchase.\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;\u0026lt;strong\u0026gt;Free Shipping\u0026lt;\/strong\u0026gt; \u0026amp;ndash; On qualifying orders over $49.\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;li\u0026gt;\u0026lt;strong\u0026gt;Flexible Financing\u0026lt;\/strong\u0026gt; \u0026amp;ndash; Convenient payment options available.\u0026lt;\/li\u0026gt;\u003cbr\u003e\u0026lt;\/ul\u0026gt;\u003c\/p\u003e","brand":"Audio Advisor","offers":[{"title":"Gloss White \/ New","offer_id":45982917558445,"sku":"NEW-RLS550-GLSWHT","price":3299.0,"currency_code":"USD","in_stock":true},{"title":"Gloss White \/ Demo","offer_id":45982917591213,"sku":"DEMO-RLS550-GLSWHT","price":3299.0,"currency_code":"USD","in_stock":false},{"title":"Gloss Black \/ New","offer_id":45980008808621,"sku":"NEW-RLS550-PIABLK","price":3299.0,"currency_code":"USD","in_stock":true},{"title":"Gloss Black \/ Demo","offer_id":45980008841389,"sku":"DEMO-RLS550-PIABLK","price":3299.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3708\/1773\/files\/images_f163865b-10e0-4755-9cc7-d4b215543786.jpg?v=1786202731","url":"https:\/\/www.audioadvisor.com\/products\/rel-acoustics-s-550-10-inch-powered-subwoofer","provider":"Audio Advisor","version":"1.0","type":"link"}