S/510 vs S/550
The S/550's power @ 8ω is 550W against the S/510's 500W and its low-frequency extension 19 Hz against 20 Hz. Both share woofer (10") and drivers (1).
AI-generated product photo — not official manufacturer imagery.
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About the S/510
The REL Acoustics S/510 is the entry-level model in the Serie S range, featuring a front-firing 10-inch (250mm) long-throw ContinuousCast Alloy cone driver with carbon fiber backing for enhanced strength and reduced reversion, paired with a 12-inch (300mm) SuperProgressive down-firing passive radiator for deep, powerful bass extension to -6dB at 20Hz. Powered by a 500W RMS NextGen3 Class D amplifier, it includes PerfectFilter circuits for superior stereo music performance and PureTheatre filters for dynamic home theater. Connectivity options include high-level Neutrik Speakon (input/output), low-level stereo RCA, LFE RCA, and LFE XLR (balanced). Recommended for corner placement behind a stereo loudspeaker. It supports wireless via optional REL AirShip and can be stacked in line arrays. The S series appears discontinued as of recent reports, with U.S. stock marked sold out.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Impedance
- 8Ω
- Frequency Response
- 20 Hz - 20 kHz
- Power Handling
- 500W
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 500W @ 8Ω
- Amplifier Class
- D
Speaker Design
Driver configuration and enclosure design
- Driver Type
- dynamic
- Driver Size
- 10"
- Driver Count
- 1
- Enclosure Type
- passive_radiator
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA, XLR
- Analog Outputs
- RCA, XLR
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 400 × 410 × 464 mm (W × H × D)
- Weight
- 31.7 kg (70 lbs)
- Available Colors
- Piano lacquer black, Piano lacquer white
Key Specifications
Impedance: 8Ω
Power: 500W
Frequency: 20-20000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions