Product Description

The REL Acoustics S/510 is a premium high-end active subwoofer engineered for audiophiles, luxury home theater systems, and serious music enthusiasts seeking fast, deep, and beautifully controlled bass performance.

Part of REL’s acclaimed Serie S lineup, the S/510 takes REL’s compact high-performance subwoofer philosophy to near reference-level territory. Designed for users who want flagship-grade bass without the massive footprint of larger reference models, the S/510 delivers explosive dynamics, exceptional speed, and breathtaking low-frequency realism.

At the heart of the S/510 is a powerful:

• 10-inch ContinuousCast™ alloy active driver
• 12-inch SuperProgressive™ passive radiator
• 500W NextGen3 Class-D amplifier

This advanced combination allows the subwoofer to reproduce deep bass frequencies down to 20Hz with remarkable precision, authority, and musicality. REL also reinforces the driver with lightweight carbon fibre backing to improve stiffness, reduce distortion, and maintain speed under high output conditions.

Unlike many conventional subwoofers that focus purely on boom and output, the S/510 is designed specifically for:

• High-end stereo systems
• Audiophile music playback
• Premium home cinema setups
• Fast transient bass response
• Seamless speaker integration

REL’s proprietary PerfectFilter™ and PureTheatre™ technologies improve low-frequency extension while maintaining openness and spaciousness throughout the soundstage. The result is bass that feels textured, fast, layered, and deeply immersive rather than overwhelming.

The S/510 also supports REL’s famous:

• High-Level Speakon connection
• Stereo RCA inputs
• LFE RCA & XLR inputs
• Optional AirShip wireless connectivity
• Multi-sub line array configurations

This flexibility makes it equally capable in:

• 2-channel audiophile systems
• Dolby Atmos theaters
• Music-focused stereo rooms
• Hybrid music + cinema setups

Wrapped in a beautifully crafted cabinet with polished side handles and premium piano lacquer finishes, the S/510 looks every bit as refined as it sounds.

Key Features

• High-end active stereo subwoofer
• 500W NextGen3 Class-D amplifier
• 10-inch ContinuousCast™ alloy active driver
• 12-inch SuperProgressive™ passive radiator
• Deep bass extension down to 20Hz
• Carbon fibre reinforced driver cone
• REL PerfectFilter™ technology
• PureTheatre™ cinematic filter tuning
• High-Level Speakon connectivity
• Stereo RCA, LFE RCA & XLR inputs
• Optional REL AirShip wireless compatibility
• Stackable line-array configuration support
• Premium piano lacquer cabinet finish

Specifications

Sound Signature

The REL S/510 is known for:

• Fast musical bass response
• Deep controlled low frequencies
• Massive cinematic dynamics
• Excellent speaker integration
• Spacious soundstage enhancement
• Tight punchy transient performance

Unlike traditional “boomy” subwoofers, the S/510 focuses on texture, timing, and realism — making it especially loved among stereo audiophiles.

Ideal For

The REL S/510 is perfect for:

• High-end stereo systems
• Audiophile music listening
• Dolby Atmos home theaters
• Luxury media rooms
• Large bookshelf & floorstanding speakers
• Hybrid music + cinema systems

Recommended speaker pairing:

• KEF Reference Series
• Bowers & Wilkins 700/800 Series
• ELAC Vela & Carina
• Focal Aria & Kanta
• Monitor Audio Gold & Platinum