REL Acoustics
Serie S/510 10" Sealed Subwoofer
Best compact subwoofer for high-end audio and home theater enthusiasts.
The REL Acoustics S/510 is a powered subwoofer engineered for exceptional performance in a stylish, compact design. It delivers deep, impactful bass and incredible speed, making it an ideal companion for high-end speakers or for smaller listening spaces. Featuring a 10-inch driver and a 500-watt Class D amplifier, it provides substantial power reserves for both music and home theater. The S/510 offers reference-like audio quality, enhancing soundstage and dynamics for a truly immersive experience.
$2999.99
Owner Satisfaction
4.7
/ 5
Category Rank
578
/ 8447
#578 in Speakers
Price vs Category Average
+105%
Above average
Type
Front-firing active woofer, down-firing passive radiator
/ Front-firing active woofer, down-firing passive radiator
Who it's for
- Audiophiles seeking seamless sonic integration with their main speakers
- Listeners demanding precise, impactful bass with exceptional transient accuracy
- Home theater enthusiasts wanting scalable, room-filling line array performance
Who should skip it
- Movie buffs prioritizing maximum volume and visceral, ported-subwoofer rumble
- Budget-conscious buyers looking for high-value, entry-level subwoofer options
- Casual users preferring simple, plug-and-play home audio setups
Performance breakdown
Transient Response
The ContinuousCast alloy cone delivers lightning-fast, precise bass transients.
Low Frequency Extension
Reaches down to 20Hz with authority for deep, cinematic rumble.
Integration Capability
Neutrik Speakon connection allows seamless blending with high-end main speakers.
Power Reserve
The 500W Class D amplifier maintains composure during demanding dynamic peaks.
Build Quality
Substantial 70-pound chassis minimizes cabinet resonance for cleaner output.
Soundstage Expansion
Effectively opens up the soundfield for a more immersive listening experience.
Key Specs
Type
Front-firing active woofer, down-firing passive radiator
Active Driver Size
10", 250 mm long-throw
Passive Radiator Size
12", 300 mm
Low Frequency Extension
20 Hz at -6 dB
Input Connectors
Hi Level Neutrik Speakon, Left & Right Lo Level phono, LFE phono, LFE XLR
Power Output
500 watts (RMS)
Amplifier Type
NextGen3 Class D
Net Weight
70 lbs
Features
- Powerful 500W Class D amplifier
- Fast and accurate sound reproduction
- Designed for high-end speakers
- Stylish and compact design
- Extreme deep bass output
- Improved theatre dynamics
- Open and spacious soundfield
- ContinuousCast™ Alloy Cone
What customers say
The REL Serie S/510 subwoofer earns high praise for its exceptional musicality and seamless integration. Users consistently report that the bass is tight, controlled, and never boomy, delivering deep, articulate low frequencies perfect for both music and home theater. Reviewers emphasize its ability to enhance the entire soundstage without overpowering main speakers. The robust build quality and premium finish are frequently noted as justifying the investment. Many find the dynamic range and output impressive for its size. While premium priced, the consensus is that the S/510 provides a transformative audio foundation, elevating overall system performance for serious enthusiasts seeking true high fidelity.
Know before you buy
The S/510 is designed to be versatile, utilizing a 500-watt Class D amplifier that provides the speed required for musical transients and the raw power needed for cinematic impact. Its ability to integrate seamlessly with high-end speakers ensures that it enhances the soundstage for music while delivering the deep, controlled bass necessary for home theater dynamics.
The front-firing 10-inch active driver provides the punch and precision, while the 12-inch down-firing passive radiator extends the low-frequency output. This configuration allows the subwoofer to reach down to 20 Hz while maintaining a compact, manageable footprint.
Yes, the S/510 is highly flexible. It features a Hi-Level Neutrik Speakon connection—which is the preferred method for musical integration—as well as dedicated LFE inputs via RCA and XLR for home theater processors.
Absolutely. Because of its compact design and precise, fast sound reproduction, it is an excellent choice for smaller spaces where a larger, boomy subwoofer might overwhelm the room. It provides deep bass without sacrificing clarity or detail.
No, the S/510 has its own built-in 500-watt NextGen3 Class D amplifier. You simply connect it to your pre-amplifier, receiver, or integrated amplifier using the appropriate input, and it handles the power requirements for the bass independently.
The S/510 weighs 70 lbs and is designed as a freestanding unit. Its weight and build quality contribute to its stability, ensuring it stays firmly in place even when reproducing demanding, high-output low frequencies.
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$3000