REL S/850 Subwoofer Review

In this REL S/850 Subwoofer Review, we explore the formidable union of power, precision and finesse that defines the latest offering in REL’s Serie S family. Whether you’re fine-tuning a high-end stereo system or crafting a truly immersive home theatre, the S/850 brings seismic authority and musicality to every note.
Striking Design Meets Functional Elegance
The S/850’s proportions—wider, deeper and more substantial than its Serie S siblings—are not just for show. The piano black lacquer finish, optional premium wood grille and milled aluminium details lend an air of refinement, while recessed stainless-steel handles and precision-level feet underscore its studio-grade pedigree.
Uncompromising Performance & Sound Character
At its core, the S/850 harnesses an 850-watt Linear Class D amplifier, delivering up to 1,000 watts peak headroom. Its 12-inch CarbonAlloy™ active driver—augmented by a 12-inch long-stroke passive radiator—combines lightning-fast transients, a taut low-frequency extension down to 19Hz and effortless dynamics. It redefines bass authority with both musical nuance and explosive impact.
Advanced Technical Innovations
- Pure Carbon-Fibre Centre Caps: Reduced moving mass for cleaner, more articulate bass.
- 40% Stiffer Passive Radiator: Greater excursion (±60mm) for expanded dynamic range.
- 100% Analog Input Filters: High Level Neutrik Speakon integration preserves the full sonic signature of your speakers.
- AirShip Direct™ Compatibility: Wireless transmission of High Level and .1/LFE for seamless setup.
- Line Array Ready: Precision-milled adjustment knobs ensure stable stacking in customised theatre arrays.
Who Should Consider the REL S/850?
If you demand detailed bass reproduction without compromise—be it for high-resolution music playback in medium-to-large rooms or immersive home theatre with reference-level dynamics—the S/850 is for you. Audiophiles seeking seamless integration with their main speakers will appreciate REL’s renowned High Level input, while home theatre enthusiasts will benefit from .1/LFE dual-mode operation.
Pros & Cons
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Pros:
- Exceptional power-to-size ratio with 850W RMS (1,000W peak).
- Pristine bass articulation via CarbonAlloy™ drivers and advanced passive radiator.
- Analog-filtered inputs for natural integration with any amplifier.
- Stylish aesthetic with optional wood grille to complement modern interiors.
- Expandability with Line Array and AirShip Direct™ wireless options.
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Cons:
- Premium price point reflects flagship-class performance.
- Substantial footprint requires consideration in compact spaces.
Experience the Difference with Our Team
The REL S/850 Subwoofer stands at the pinnacle of low-frequency performance. For in-depth advice on integrating this powerhouse into your system, call our team or email us at sales@theaudiotailor.com.au. Discover more details on the REL S/850 Subwoofer product page and speak with our experts to tailor the perfect bass solution for your space.
Redefining Bass Excellence
By uniting raw power, advanced engineering and refined design, the REL S/850 invites you to feel the music like never before. Elevate your listening experience today.