Serie T/i

$999 $899

Modulating scale, while never compromising quality, T/7i provides the speed and punch of the T/9i, scaled to integrate seamlessly with more modest yet still highly sophisticated systems.

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Balance Point

The Perfect Blend

T/7i 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/7i 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.


Reimagined, Then Reengineered

When we upgraded our drivers, we were forced to redesign outward. The lovely cabinets grew over its predecessor due to thicker cabinet walls and improved bracing. Why? Because the additional speed and impact of the new drivers requires greater control or the benefits can be lost before they get to the listener.


Outsized Performance


The new composite alloy/fibre engine in T/7i blends precisely the correct dimension of stiffening alloy with a fibre material chosen for its sonic neutrality and light weight. The combination is brilliant; exceeding the performance of competitors’ drivers that are many times more expensive. The forward-firing 8” active couples with a larger 10” down-firing passive, again with carefully chosen balances of alloy to fibre and the result is seamless, effortlessly deep bass that blends perfectly with the main speakers.


Brains and Brawn

The Power Behind REL

If our driver designers deliver the structure of REL’s sound, the electronics are the brains and the power behind our success. Serie T/i uses the same Class A/B power amplifier sections with large, high current power supplies, precision-wound toroidal transformers and an amazing reliability record that has powered almost 100,000 RELs. Our proprietary filter designs are responsible for rave reviews for REL’s unique ability to blend seamlessly while layering on all the harmonic structure missing from conventional systems. Standby Mode switch not included on 110V units.


Zero Compression Wireless

Introducing Arrow™

Arrow™ is REL’s latest generation of zero compression wireless. Super-fast delivery of both High Level Bass and .1/ LFE ensures the rich, natural warmth that only RELs can deliver. With a throw distance of some 45’(13.7M) Arrow permits flexible placement without sacrificing sound quality.

Customer Reviews

Based on 115 reviews
T/9i Awesome Subwoofer with great sound and beautiful cabinet

This is the third REL subwoofer that I purchased for my system. They are a great sub for music and theater that has a beautiful cabinet. The subs have great rich sound, are very complementary and enhance the other speakers, fill out the entire room with a warm, full sound. When watching action movies, they add great depth to the sound of the action. Rel has great tools online to help match the Rel subs with your speakers, help with placement and provide subwoofer recommendations for music and theater. Again, a great product with wonderful sound and overall excellent customer experience.

Great sounding sub

This is my second one so I run two for 2 channel Stereo. For my room which is pretty live, thr 7i's are more than enough subwoofer. They provide great low bass as well as add tight punchy bass when the music calls for it.


Beautiful piece inside and out - who would expect both from a subwoofer? By utilizing the high level input with the supplied cable, the T/9i maintains all the characteristics of the silver cabling to my amp but essentially ignores the amp's incoming wattage. Once the .1 and high levels were tweaked, the REL became sonically invisible while providing a lush, solid and satisfying deep end. But instead of hiding it in a corner - I proudly placed it front and center between the speakers where it can most easily be admired.


Sounds awesome and we haven't even tuned it yet.
The first 24 hour burn in was light on the volume and bass demand, but even with that very revealing. We new we had a good sub right away.
Can't wait to see where it takes us once we tune it with the room!

New Listening Experience

Running a single T/9i with a pair of 1990 Nelson-Reed 8-02B floor standing speakers. Really transforms our system. Bass is much more dynamic, tight and defined. Set up videos and FAQs on the website are very good. We are happy we went with the REL.

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Suggested Retail: $999 $899

Modulating scale, while never compromising quality, T/7i provides the speed and punch of the T/9i, scaled to integrate seamlessly with more modest yet still highly sophisticated systems.

In the interest of product development, REL Acoustics Limited reserve the right to vary these specifications without notice.