REL T5x 125 Watt Subwoofer - Black

REL T/5x 125 Watt Subwoofer – Black

Bring depth, weight and realism to your sound system with the REL T/5x Subwoofer, a compact active subwoofer designed for listeners who want serious bass performance without sacrificing valuable floor space. Part of REL’s acclaimed Serie T/x range, the T/5x is built to deliver fast, controlled and musical low frequencies, making it equally at home in both hi-fi and home cinema systems.

Combining a powerful 125-watt Class A/B amplifier, an 8-inch FibreAlloy™ driver and REL’s signature high-level connectivity, the T/5x proves that compact dimensions don’t have to mean compromised performance.

Compact Design, Full-Scale Bass Performance

The REL T/5x has been created for smaller and medium-sized rooms where space matters, but performance still comes first. Its slim cabinet and carefully refined proportions make it easy to place beside furniture, in corners or within tighter setups, without dominating the room visually.

Despite its smaller footprint, the T/5x produces bass with surprising scale and authority. The secret lies in its down-firing design, where low-frequency energy is directed towards the floor and dispersed evenly throughout the room. This creates a wider, more natural bass response that feels larger than the cabinet itself suggests.

For those wanting clean aesthetics, the driver is hidden underneath, eliminating the need for a front grille and helping maintain its minimalist look.

125 Watt Class A/B Amplifier for Precision and Control

At the heart of the T/5x is REL’s trusted 125-watt RMS Class A/B amplifier, chosen for its ability to deliver better control, speed and musicality compared to many digital amplifier designs.

This amplifier gives the subwoofer excellent grip over the driver, meaning bass notes start and stop exactly when they should. That control is especially noticeable in music, where timing and rhythm are crucial. Instead of loose or exaggerated bass, you get tight, accurate low frequencies that support the rest of your system naturally.

Whether you're listening to acoustic recordings, bass-heavy electronic music or action-packed movie soundtracks, the amplifier maintains clarity and composure.

8-Inch FibreAlloy™ Driver for Fast, Responsive Bass

The T/5x uses an 8-inch long-throw FibreAlloy™ bass driver, designed for speed as much as power.

The lightweight yet rigid cone construction allows it to react quickly to dynamic changes in audio, helping reproduce bass with precision and impact. This makes a real difference with complex music tracks, where slower subwoofers can sound muddy or disconnected.

Because the driver fires downward, it uses room surfaces more effectively, helping create a fuller and more immersive low-end response.

Built for Low Resonance and Cleaner Sound

A good subwoofer needs more than power—it needs stability. That’s why REL has engineered the T/5x cabinet using rigid laminated plywood construction, supported by carefully placed internal bracing.

This stronger cabinet structure reduces unwanted resonance and vibration, allowing more of the amplifier’s energy to be focused on producing clean bass rather than shaking the enclosure.

The result is tighter, cleaner low frequencies with less distortion, even at higher listening levels.

Ideal for Music and Home Cinema

One of the standout features of the REL T/5x is its flexibility. Unlike many subwoofers designed mainly for films, the T/5x performs exceptionally well with music too.

It features separate input and level controls for:

• High-level connection (ideal for stereo hi-fi systems)
• Low-level connection
• LFE (.1 channel) for AV receivers and surround sound systems

This means you can fine-tune the bass performance differently for music and movies without constantly adjusting settings.

For stereo listening, bass remains subtle and integrated. For films, you can enjoy the extra impact and drama that dedicated LFE channels provide.

Optional Wireless Connectivity

Want cleaner installation without long cables? The T/5x can be upgraded for wireless operation using the optional REL Arrow Wireless System.

REL’s Arrow system uses zero-compression wireless transmission, helping preserve sound quality while offering more flexibility in where you position the subwoofer.

This is especially useful in living rooms where cable management can be difficult.

Premium Piano Black Finish

REL has always paid close attention to build quality, and the T/5x is no exception.

Finished in a hand-polished five-layer Piano Black lacquer, the cabinet has a premium, furniture-grade appearance that feels every bit as refined as it sounds. Softly rounded edges and aluminium feet complete the look, making it one of the more stylish subwoofers in its class.

Rather than hiding it away, this is a subwoofer you’ll be happy to have on display.

Key Features

• 125 Watt RMS Class A/B amplifier
• 8-inch FibreAlloy™ down-firing driver
• Compact cabinet design ideal for small to medium rooms
• Floor-firing bass design for wider room-filling performance
• High-level, low-level and LFE connectivity
• Separate gain controls for music and home cinema setups
• Rigid braced cabinet construction for reduced resonance
• Optional wireless connectivity via REL Arrow
• Premium Piano Black gloss finish
• Compact footprint for discreet placement

Why Choose the REL T/5x?

The REL T/5x is designed for people who want genuine low-frequency performance without the bulk of a large subwoofer. It offers the speed and control needed for music, the impact required for movies, and the compact styling to fit neatly into modern living spaces.

If you want a subwoofer that adds real depth to your system without overwhelming your room, the REL T/5x is a seriously capable choice.

What’s in the Box?

• Rel T5X Subwoofer, Gloss Black
• Mains lead
• Neutrik speakon (10 metres nominal)
• Interconnect
• User Manual

Technical Specifications

Protection System

General

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