REL S/550 subwoofer
Best compact subwoofer for high-end music and home theater enthusiasts.
The REL S/550 subwoofer is the gateway to the acclaimed Serie S line, delivering REL's signature speed and depth in a compact design. It features a powerful 550-watt Pure Class D amplifier paired with advanced CarbonAlloy™ drivers for fast transients and articulate bass. This subwoofer is ideal for enhancing music and film in medium-sized rooms, offering flexible integration with support for stereo pairs and line arrays to elevate any high-end home audio setup.
$3299.00
More S Options
Owner Satisfaction
4.7
/ 5
Category Rank
501
/ 6561
#501 in Speakers
Price vs Category Average
+125%
Above average
Power Output
550
/ watts
Who it's for
- Audiophiles seeking perfect sonic cohesion with their main speakers
- Music lovers prioritizing tight, articulate bass over raw volume
- Home theater enthusiasts demanding dynamic, controlled power at high levels
Who should skip it
- Budget-conscious buyers looking for maximum output per dollar
- Novice users intimidated by complex manual calibration processes
- Movie buffs wanting maximum chest-thumping impact for cinema
Performance breakdown
Transient Response
CarbonAlloy drivers deliver lightning-fast starts and stops for precise musicality.
Low-End Authority
The 550-watt amplifier provides substantial depth for medium-sized listening spaces.
Integration Flexibility
Seamlessly blends with main speakers through REL's signature high-level connection.
Cabinet Compactness
High-performance output packed into a footprint that avoids dominating your room.
System Scalability
Easily expands into stereo pairs or line arrays for ultimate performance.
Build Quality
Robust construction ensures resonance-free playback even at high volume levels.
Key Specs
Power Output
550 watts
Amplifier Type
Pure Class D
Active Driver Size
10 inches
Passive Radiator Size
12 inches Down-Firing
Driver Material
CarbonAlloy™
Model Number
S/550
Speaker Type
Subwoofer
Number of Drivers
2
Features
- Powerful 550W Pure Class D amplifier
- Fast, dynamic CarbonAlloy™ drivers
- Deep, articulate bass performance
- Compact cabinet design
- Ideal for music and home theater
- Supports stereo pairs and line arrays
- 10" active driver with 12" passive radiator
- Optional premium wood grille available
What customers say
Customers overwhelmingly praise the REL S/550 for delivering refined, musical bass characterized by exceptional speed and articulation. Its core strength is the seamless integration into high-end audio systems, enhancing soundstage depth without sounding separate. The proprietary high-level connection is frequently cited as a key feature enabling this perfect blend. Reviewers consistently describe the bass as taut, controlled, and deeply resonant, revealing subtle musical textures. While the investment is significant, users feel the sonic improvement justifies the premium, viewing it as essential for full-range fidelity. The consensus confirms the S/550 offers world-class performance through unparalleled precision and musicality.
Know before you buy
The 10-inch active driver handles the primary bass output, while the 12-inch down-firing passive radiator extends the low-frequency response. This combination allows the S/550 to produce deep, authoritative bass from a smaller cabinet footprint than a traditional ported design.
It is designed to excel at both. Because REL prioritizes speed and transient response, it provides the articulation needed for complex musical passages while maintaining the power and impact required for cinematic sound effects.
Yes, the S/550 is designed to support stereo pairs or even larger line arrays. Using two subwoofers can help smooth out room modes and provide a more balanced, immersive soundstage across your listening area.
The CarbonAlloy material is exceptionally stiff and lightweight, which allows the driver to start and stop very quickly. This results in tight, precise bass that doesn't 'smear' or lag behind the main speakers.
The S/550 is optimized for medium-sized rooms. Its 550-watt amplifier provides enough headroom to fill these spaces with clean, controlled low-end without overwhelming the room or sacrificing detail.
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$3299