REL Acoustics T/7x

Powerful. Balanced. Beautifully Compact.T/7x blends speed, punch, and refinement transforming smaller and mid-sized rooms with surprising scale and musical warmth.

• Dynamic, controlled bass from a 200-watt Class A/B amplifier
• Fast, detailed response from an 8" FibreAlloy driver
• Extended presence via a 10" down-firing passive radiator
• Ideal for music and theater systems needing agility and clarity

• Black
• White

• Single Subwoofer
• Stereo Pair

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The Practically Perfect REL

Filtered for Purity

REL’s legendary High Level Input connection and fast filters are a significant chapter in the REL story. Connecting via the speaker outputs of your amplifier without drawing any power from it may seem like magic, but the real magic lies in the way the sound takes on a natural character and blends seamlessly with your speakers. Unique tuning and special limiters means the T/7x sounds fresher, faster and more dynamic than before.

T/7x is, without reservation, one of the most-balanced RELs of all time. In order to achieve perfect balance, a sub must weigh speed against heft, while ensuring true extension-depth-and do so in a physically harmonious package. T/7x manages to make it all seem easy. Quick and delicate for a perfect blend, it can pound out exceptionally deep, tuneful bass that belies its size and plays louder than most will ever require.

REL’s legendary High Level Input connection and fast filters are a significant chapter in the REL story. Connecting via the speaker outputs of your amplifier without drawing any power from it may seem like magic, but the real magic lies in the way the sound takes on a natural character and blends seamlessly with your speakers. Unique tuning and special limiters means the T/7x sounds fresher, faster and more dynamic than before.

T/7x is, without reservation, one of the most-balanced RELs of all time. In order to achieve perfect balance, a sub must weigh speed against heft, while ensuring true extension-depth-and do so in a physically harmonious package. T/7x manages to make it all seem easy. Quick and delicate for a perfect blend, it can pound out exceptionally deep, tuneful bass that belies its size and plays louder than most will ever require.

Designed to be Better

Many don’t realize the intense connection between performance and design here at REL. Performance is everything to us and it leads to physical design solutions. Thus it is, that our engineers, in recognizing the need for greater cabinet volume to achieve the goals of greater fluidity and power, turn to the designer. He works dimensions to fool the eye into seeing a smaller, more compact footprint, even though cabinet volume increases. Using gently rounded corner radii that allows the eye to flow over and see less visual mass. The result is both modern and clean with no unnecessary adornment.

Drive On

The 8” long throw active and 10” passive drivers are where T/7x derives its incredible speed and clean finish. A thorough revision of critical suspension components are responsible for the agility and suppleness of T/7x. The T/7x sounds louder and more powerful is expected, but few would predict it also is faster, more reactive and transparent than our prior generation, itself a paragon of virtue. Stiffer suspensions better suited to advanced duty mean not only can each driver trace minute details, but also travel farther and handle more power.

Tried and True Amplifiers

We have retained our signature Class A/B amplifiers used in every generation of Serie T since 2006. Reliability is the key to happy ownership and with some 200,000 and counting of this range leading long happy lives, Serie T/x owners can feel certain of REL’s standard setting reliability. The powerful 200-watt mosfet amplifier used in the T/7x remains an icon of sound and reliability with huge reserves of current. Massive power supplies are used and small upgrades are found everywhere. New driver mosfets that open up performance and transparency and new methods for securing the toroidal transformers mean better performance and superior reliability. The best gets better.

Standby Mode switch is only included on 220V units.

Zero Compression Wireless

At REL, we’ve developed a sterling reputation for building the finest sounding, fastest wireless systems available in the industry. REL never rely upon digital compression as it results in thin, lifeless sound. Instead, we have perfected an (optional) Arrow™ Wireless system; so fast and dynamic we’re comfortable encouraging the use of wireless on one channel of a pair of RELs while the other channel may be connected hardwired with cable.

The REL T/7x is a perfectly balanced blend of speed, nuance, and power—designed to deliver deep, tactile bass with precision. To achieve this, we pair an 8" active driver with a 10" passive radiator and a 200-watt Class A/B amplifier. The result is quick, articulate bass that brings out the best in two-channel systems while offering enough output to elevate modest home theater setups. Its elegant, compact design makes it an ideal choice for refined living spaces.

The T/9x delivers fast, natural bass with depth and authority. For music, it enhances texture, timing, and soundstage; for home theater, it adds weight and realism to every scene—all while maintaining the speed and clarity that define REL’s musical approach to low bass.
Yes, the T/7x is phenomenal for both dedicated music systems and mixed-use setups where you listen to music and watch movies on the same system. Every model in the T/x line is a true dual-purpose subwoofer, allowing you to connect in two ways simultaneously—for music and for movies. This is achieved through a dedicated LFE input with its own volume control, separate from the high- and low-level music inputs and controls.

Yes, the T/7x can be integrated with other REL models. This comes in handy when building a REL 3D set up where you can mix and match different models and pair them with different sets of speakers in your theater set ups. For stereo pairs, two of the same model is required to achieve the stereo effect. In theater setups, it works beautifully alongside other series—such as Serie HT or Serie S to improve impact, clarity, and balance for realism that is sure to make you smile.

Yes, the T/7x is compatible with our Arrow™ wireless system, which is equipped with all the same inputs found on the rear amplifier panel. Arrow delivers high-performance wireless operation with zero compression and extremely low latency—ideal for subwoofers placed far from your main system or for those seeking a clean, cable-free installation.

The T/7x is ideally suited for small to medium-sized rooms, typically between 100 and 300 square feet. It’s powerful enough to fill the space with full-bodied bass, yet agile enough to deliver the speed, definition, and musicality essential for both 2-channel music systems and home theater setups.

No, the T/7x is not designed for vertical line array stacking, and we strongly advise against it. However, it excels when used in stereo pairs for music or as part of a REL 3D setup. For vertical stacking applications, consider stepping up to the HT/1510 Predator or our Serie S subwoofers.