Serie T/i


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 38 reviews
Love the integration with my system and the lack of boominess, am afraid of the cloth front cover...

First off, as coming from a couple of SVS SB-2000 subwoofers, the integration of the T/7i was on a whole new level. I had to fight with the SVS's in my tiny (probably too small) room to keep the boominess and tendency to overpower my main speakers (Buchardt s400), so they ended up only doing minimal duty, covering the lowest frequencies I could set them for. When I first hooked the T.7i high level and listened, I thought "OK, but not knocking me out". THEN I started playing around with the settings and discovered that the phase switch was set to 180 degrees; I switched it to 0 and the T/7i dropped right into the groove, and the subsequent volume/crossover settings only made the sound slightly more or less great. I saw that the upper ranges of the subwoofer's reach are just as important (if not more important) as the low frequency performance - electric bass and the drum hits are clearer with more snap and quicker than the SVS's, which I didn't think would be something that I'd really notice as a difference. And, at no time was there ever a point in my tweaking where I could say "Oh, THAT note is coming out of the subwoofer, right over there". Since I only use my system for 2 channel stereo I don't need the 12 inch subwoofers, but if I was using them partially for HT I'd miss the rumbly low bottom that crawls around the floor and massive booms from movies. I will say that the T/7i doesn't reach down as low as the SVS's even for 2 channel (and if you push it to try to get it there it could get ugly or damage the subwoofer) , but what's there is plenty for me, and what it brings to the table is a definite improvement for my setup. My caveats are: 1.) $999 can be a budget stretcher if you can only afford one (and probably two is better, as I've noticed with my SVS's), but free shipping, 60 day return policy, and no tax (at least to me) keeps the price at $999 and no higher; 2.) I've already mentioned that they just don't give that pants-flapping low rumbly bass so go to a higher model or the HT model or somewhere else; 3.) the stretchy material on the front speaker cover I'm sure could be ripped or snapped with a minimum of carelessness (and - cats?), so that's where the metal speaker covers on the SVS's win out.

Excellent subwoofer

Great sound, excellent design and very easy to connect or integrate to your existing audio system. Looks great, sounds perfect.


Bought two Rel t/7i's, perfect with my Monitor Audio Silvers. Before the Rel's I didn't care for the boomy bass in with my old sub. This sub makes my whole system sound like it's a much more expensive set up then it really is. I love this sub.

Replaced my 17-year-old REL subwoofer

And I can hear music again

Read it and see the pics :D

Just two weeks I owe a t/7i using high level and lfe amd nothing I can compare to it. I have just ordered a t/5i with arrow wireless unit and waiting for it as I sent it to friend so wife never find it out as I install it shen she at work. Seriously for music the speakon is awesome. You can basically place the sub anywhere, on a garden chair if it works. I will get a 3. t/5i now I know


Suggested Retail: $999

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.



Front-firing active driver, down-firing passive

Active Driver Size & Material

8 in., 200mm long-throw, FibreAlloy™ inverted aluminium dust cap, steel chassis, white cone

Passive Radiator Size & Material

10 in., 250mm long-throw, inverted aluminium dust cap, steel chassis, black cone

Low Frequency Extention

-6dB at 30 Hz

Input Connectors

High Level Neutrik Speakon, Low Level single RCA, LFE RCA

Output Connectors


Power Output

200 Watts (RMS)

Amplifier Type

Class A/B

Wireless Capability

Arrow (Optional), Zero Compression, Single Large Scale Integrated Chip

Protection System

Fully Electronic Set Safe


D.C. Fault


Output Short


Mains Input Voltage

220-240 volts, 110-120 volts for certain markets


2 Amp semi delay 230 volts operation, 4 Amp semi delay 115 volts operation


W x H x D

12 x 14.3 x 15 in. (305 x 362 x 382 mm)

Net Weight

36 lbs. (16.3 kg)


High Gloss Black, High Gloss White, 5 coats

Supplied Accessories

Mains Lead


Neutrik Speakon

Yes (10 Meters Nominal)


Users Manual


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