Serie T/x


T/7x is the perfect answer for the real world. It’s compact enough (and beautiful enough) to end arguments before they begin; while powerful enough to easily answer most needs and balanced enough to blend beautifully with many of the quality speakers out there and still flexible enough to work in specialty applications.

Find a Dealer

REL Customer Promise Learn More

Filtered for Purity

The Practically Perfect REL

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

The Power Behind REL

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

Unlimited Possibilities

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.

Customer Reviews

Based on 3 reviews
Tracy Tibedo

This little cube made a big improvement in the over all quality of sound. Well worth the money. I see a second one in my future.

Pete Mizz
A subtle powerhouse

So I graduated my t9i to my theatre room to experience the new X range from REL in my music room with my LEF LS50 W2s. I was a little nervous going from 1 t9i to 1 t7x but the plan is to eventually get a pair of the t7x anyway. I liked the authority in the 9i and found no real issue with it. But now after listening to the 7x in comparison I can definitely see what the YouTube reviews were talking about. The 7x disappears more. When non bass heavy parts of songs are playing the sound stage simply feels fuller. Almost like the sub isnt even there and then a bass line drops and the 7x seemingly hits out of nowhere to remind you its there. But when it hits it is so fast there isn’t a hint of it taking over the sound stage. The bass starts and stops on a dime. Maybe its bit because of the smaller driver and a bit for the new design. But whatever it is it is instantly noticeable.

I swapped the 9i and 7x back and forth a few times just to compare and honestly the 9i seemed slow and bloated by comparison. Something I never thought of the 9i until I compared them directly. The bass from the 7x just never hangs and thats why i think it blends so much better and doesn’t call attention to itself. Which is a shame because it’s beautiful. :)

Now I am just left to wonder if the stereo pair is really worth the extra money. I mean how much better could it be really? 1 t7x is pretty darn impressive. But I’m sure I will bite the bullet and find out at some point.

REL bravo on this one. Great product. I am officially a REL fanboy.

Don B.
T/7x Impressions

After 10 days of operation I thought I'd take a minute to provide my first impressions of the new 7x in my office 2 channel system. My room is small measuring 10'5" x 12'9" x 9'. The system consist of a McIntosh C47 pre, McIntosh MC-152 amp, Oppo UDP-205, Yamaha DVD CX-1 multi-disc changer playing through B&W 805 d3 speakers. After following the recommended break-in procedures I spent many hours dialing in the set-up. The introduction of a sub in a new environment can be frustrating, which I was initially, but after a day or so I began to fully grasp the function and integration process of a REL. As of this writing I'm happy to report the sub has blended perfectly with my system. Last night I decided I would experiment listening to a couple of well known songs with and without the sub. Well, that did it for me. The REL is here to stay. All the hype you read about REL subs is REAL. I am extremely pleased with the sound of my system especially when played at low levels as the sound is much fuller with better definition. You also hear so much more in the music that was absent before. Lastly, my first three or 4 days was spent using the stock high level cable. I then received my Bassline Blue cable and it provided an instant improvement in detail and overall sound quality. The improvements were significant enough that I thought to myself this should be the stock cable that ships with the unit. All in all, great job John. Thank you.


Suggested Retail: $1,099

T/7x is the perfect answer for the real world. It’s compact enough (and beautiful enough) to end arguments before they begin; while powerful enough to easily answer most needs and balanced enough to blend beautifully with many of the quality speakers out there and still flexible enough to work in specialty applications.



Front-firing active driver, down-firing passive

Active Driver Size & Material

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

Passive Radiator Size & Material

10 in., 254mm long-throw, inverted dust cap

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

14.0 x 12.6 x 14.3 in., (356 x 320 x 363 mm)

Net Weight

38.5 lbs. (17.5 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.