REL S/550 Subwoofer - Compact 550W Pure Class D Powerhouse for Medium Rooms

Discover the perfect balance of power and finesse with the REL S/550, the gateway to REL's acclaimed Serie S lineup. This compact yet mighty subwoofer pairs a sophisticated 550-watt Pure Class D amplifier with advanced CarbonAlloy™ drivers to deliver lightning-fast transients, deep articulate bass, and exceptional tonal balance. Ideal for medium-sized music and theatre systems, the S/550 brings true high-end performance within reach of discerning listeners. Reserve your S/550 today and experience the Serie S difference.

Key Features

• 550-Watt Pure Class D Amplification: Advanced amplifier design delivering exceptional efficiency and dynamic power
• Hybrid Driver Configuration: 10" CarbonAlloy™ active driver with 12" down-firing passive radiator for optimal bass extension
• Compact Serie S Design: Medium room optimisation with larger cabinet volume for improved driver performance
• Versatile Installation Options: Perfect for stereo pairs, line array configurations, and integrated theatre systems
• Premium Build Quality: Horizontal strake cabinet design with elegant elliptical handle returns
• Optional Wood Grille Upgrade: Premium wood grille available for enhanced aesthetics and warmth
• Professional Setup Features: Front-rail levelling adjusters for effortless installation on any surface
• REL Heritage Engineering: Incorporates design innovations from the flagship S/850 model

Revolutionary Compact Design Philosophy

The S/550 redefines what's possible in a medium-sized subwoofer cabinet. Through innovative engineering, REL has created a design that appears visually lighter whilst actually providing greater internal volume than previous generations. This seemingly paradoxical achievement allows the drivers greater freedom to operate whilst improving amplifier efficiency and thermal management.

The sophisticated horizontal strakes carved into the sidewalls aren't merely aesthetic choices—they're functional design elements that contribute to the cabinet's structural integrity whilst reducing visual mass. Updated internal bracing keeps cabinet resonances firmly under control, ensuring that every watt of the 550W Pure Class D amplifier translates directly into pristine bass reproduction.

Superior Audio Performance for Medium Spaces

The S/550 delivers the speed, depth, and nuance that define REL's performance ethos in a perfectly sized package for medium rooms. The innovative combination of a 10-inch CarbonAlloy™ active driver working in concert with a larger 12-inch down-firing passive radiator creates a unique bass reproduction signature that combines authority with remarkable refinement.

Lightning-fast transients ensure that every musical detail is preserved, from the subtle decay of acoustic instruments to the thunderous impact of cinematic explosions. The tonal balance achieved breathes life into both music and film, consistently exceeding expectations for subwoofers in this size category. Whether supporting stereo music systems or integrated into home theatre configurations, the S/550 provides the foundation for truly immersive listening experiences.

Serie S Design Excellence & Craftsmanship

The S/550 showcases REL's commitment to thoughtful design where beauty, performance, and usability converge seamlessly. Every detail reflects careful consideration, from the warm golden-silver handles that echo raw titanium aesthetics to the discreet model numbers etched into front rails—visible only when units are stacked in line array configurations.

The optional Premium Wood Grille upgrade adds warmth and individuality to complement any décor, whilst practical features like front-rail levelling adjusters ensure effortless setup even on uneven floors. Badges that disappear into the grille cloth and silver accents that rest quietly within the cabinet plane demonstrate REL's philosophy that exceptional design is as much about restraint as it is about statement-making.

Gateway to Serie S Performance

As the entry point to REL's prestigious Serie S lineup, the S/550 carries forward many design innovations from its larger sibling, the S/850, ensuring that the essence of Serie S performance is fully realised in this more compact form. This approach guarantees that owners experience genuine high-end subwoofer performance without compromise.

The Pure Class D amplifier technology represents the latest evolution in REL's amplification philosophy, delivering remarkable efficiency whilst maintaining the dynamic capability needed for both subtle musical passages and explosive cinematic moments. The result is a subwoofer that punches well above its weight class, providing performance that rivals much larger and more expensive alternatives.

Professional Integration & Flexibility

The S/550 excels in both dedicated stereo and integrated theatre applications. Its medium room optimisation makes it ideal for spaces where larger subwoofers might overwhelm, whilst its line array compatibility allows for scalable installations as needs evolve. The versatile connectivity options ensure seamless integration with any high-quality audio system.

For stereo pair configurations, dual S/550 units provide remarkable scale and authority whilst maintaining the musical coherence that has made REL legendary amongst serious music lovers. In theatre applications, the S/550 integrates effortlessly with existing speaker systems, providing the foundation that transforms good sound into truly exceptional audio experiences.

Technical Excellence in Compact Form

• Amplifier: 550-watt Pure Class D with advanced efficiency optimisation
• Active Driver: 10" CarbonAlloy™ long-throw with precision-engineered suspension
• Passive Radiator: 12" down-firing CarbonAlloy™ for extended low-frequency response
• Cabinet Design: Horizontal strake styling with increased internal volume
• Finish Options: Standard premium finish with optional Premium Wood Grille upgrade
• Setup Features: Front-rail levelling adjusters for professional installation
• Connectivity: REL's renowned High Level Input system with low-level alternatives
• Room Optimisation: Specifically engineered for medium-sized listening environments

Design Philosophy & Innovation

The S/550 represents REL's belief that great subwoofer design transcends mere technical specifications. By incorporating flagship-level innovations into a more accessible package, REL ensures that the Serie S experience remains uncompromised regardless of room size or budget considerations.

The larger cabinet that appears visually lighter demonstrates REL's mastery of industrial design, creating products that enhance rather than dominate living spaces whilst delivering uncompromising acoustic performance. Every element, from the elegant handle returns to the thoughtfully positioned badges, contributes to a cohesive design philosophy that celebrates both form and function.

The REL S/550 stands as testament to the company's commitment to making high-end bass reproduction accessible to a broader audience without sacrificing the performance standards that have made REL the choice of discerning listeners worldwide. Experience the gateway to Serie S excellence and discover why the S/550 consistently exceeds expectations in its class.