T/5i vs Syzygy Acoustics SLF820
The SLF820's power @ 8ω is 400W against the T/5i's 125W and its power handling 400 W against 125 W. Both share woofer (8") and drivers (1).
Both turn up in the same documented systems.
AI-generated product photo — not official manufacturer imagery.
LoudspeakersSubwoofersPowered LoudspeakersDiscontinued
About the T/5i
The REL Acoustics T/5i is a compact active subwoofer designed to deliver deep, fast, and impactful bass with simplicity and precision. It features a closed box design with a down-firing 8-inch AlloyFibre™ composite driver that maximizes coupling with the floor and eliminates the need for a grille. The subwoofer is powered by a Class A/B amplifier delivering 125 watts RMS, supported by large, high current power supplies and precision-wound transformers, ensuring reliability and powerful performance. The cabinet has been upgraded with thicker walls and improved bracing to control the enhanced speed and impact of the new driver, resulting in greater speed, solidity, and deeper bass response. The T/5i's design includes refined feet for improved stability and sound presentation. It is available in high gloss black or white finishes with five coats for a premium look. Dimensions are 10.5 x 12.5 x 12.7 inches (267 x 317 x 322 mm), and it weighs 26.5 lbs (12 kg). Optional wireless capability is available via the Arrow system.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Power Handling
- 125W
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 125W @ 8Ω
- Amplifier Class
- AB
Speaker Design
Driver configuration and enclosure design
- Driver Type
- AlloyFibre composite
- Driver Size
- 8"
- Driver Count
- 1
- Enclosure Type
- sealed
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 267 × 317 × 322 mm (W × H × D)
- Weight
- 12 kg (26 lbs)
- Available Colors
- High Gloss Black, High Gloss White
Key Specifications
Power: 125W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions