Stunning Design Meets Raw Power

4 NEW models to rule them all. Subtle design details refine its look and feel: clean creases that catch the light, warm silver-gold badges with a titanium-like finish, and stainless-steel handles recessed into graceful ellipses.

The Serie S line revision was a multiple year challenge that was met with cost reduction issues, tarrifs, and manufacturer changes that finally launched in the fall of 2025. I am so proud of these 4 cabinets and am excited to hear the feedback from buyers when they first start being dropped off on doorsteps.

S/850 and S/550 - Designed to be Perfect

Each cabinet is longer, lower, wider, and deeper—proportions that give it a naturally dynamic presence. Beneath each front rail, precision-milled billet cylinders provide exact leveling, while thick internal aluminum slabs secure the handles for safe stacking in Line Arrays. Designed to complement modern interiors, the S/850 also offers an optional Premium Wood Grille, adding warmth and individuality.

Stunning Design Meets Raw Power

S/850 and S/550 stands as the benchmark of the Serie S line, with its design innovations shaping and elevating its three stablemates. Every improvement is sweeping and comprehensive, ensuring the entire Serie S family benefits from the advancements pioneered in the S/850. The results are spectacular: it delivers incredible attack and output beyond even the former Carbon Special at the very limits of performance, yet with the precision, quietness, and clarity that produce true dynamic range. Lightning-fast transients, deep effortless bass, and tonal richness combine to deliver nuance that elevates both music and theater.

PROJECT INVOLVEMENT FOR ENTIRE LINE

Industrial Design

Photo Realistic Renderings

Mechanical Engineering / Drawings / Solidworks

Rear Panel Artwork and Design

Cost Reduction and Manufacturing Support

212 Black Label - Dynamic Power Meets Precision

212 Black Label is unique, the most dynamic and powerful subwoofer in the Serie S range. At its core are dual 12" CarbonAlloy™ active drivers, dual 12" passive radiators, and a 1,000-watt amplifier, working together to deliver over 450 square inches (1,166 sq cm) of piston area and the authority to energize even the largest rooms. The result is bass that is immense yet agile, combining breathtaking slam with the speed, nuance, and tonal color that define REL.

More than just raw output, 212 Black Label is the Swiss Army knife of the range. Whether anchoring reference-grade theaters or underpinning world-class stereo systems, it delivers unmatched scale and refinement. In stereo pairs, 212 Black Label can approach the authority of a full Line Array, offering massive scale in a form that integrates beautifully into both systems and spaces. An optional premium wood grille further elevates both design and performance.

Ideation Process

Design with Distinction

In a REL product line defined by gorgeous cabinetry, perhaps no model has received a more comprehensive update than 212 Black Label. A single vertical strake runs the cabinet’s height, capped by a distinctive crown badge that signals its refined status. On the top panel, an all-black badge framed in carbon fibre further marks it as Black Label. The warm silver, bead-blasted handles have a raw titanium feel, both striking and practical, while solid billet aluminum inside keeps things safe and steady, cutting down on unwanted resonance. An optional premium wood grille enhances both airflow and aesthetics, completing a design of unmistakable authority and refinement.

Carbon Special Black - Black Label Performance, Medium Chassis Form

Carbon Special Black Label elevates the medium chassis to its highest form. At its heart lies a 12" all-carbon fibre driver, closely related to the design used in our No.31 Reference, powered by a 900-watt amplifier and housed in an expanded cabinet that frees the carbon driver to deliver greater scale and authority. The result is bass that combines breathtaking power, speed, and tonal nuance.

Each Carbon Special Black Label includes a premium wood grille that enhances both beauty and airflow, underscoring the model’s dual commitment to form and function. On its own, as a stereo pair, or in towering Line Arrays, it delivers Reference-inspired authority reserved for those who demand the very best of Serie S. Black Label models represent the most advanced expressions of Serie S, built with tighter tolerances, upgraded components, and unique finishes.

Achingly Beautiful

Carbon Special Black Label pulls together the finest elements of Serie S design. Its cabinet proportions, inspired from our Reference line, achieve a natural sense of scale. Subtle black crown inlays along the sidewalls and curved stainless-steel handles recessed into elliptical returns underscore its unique position within the range. Beneath each rail, knurled billet cylinders permit precise leveling, while thick internal aluminum slabs anchor the handles for safe stacking in Line Arrays. Each unit also includes a premium wood grille that adds warmth while enhancing airflow for greater dynamics. A design where beauty and performance converge.

Ryan