Serie T/x


No model in REL’s long history has sold more units nor engendered more affection than our T/5. Here reimagined in a modern, elegant, new form factor, T/5x’s mission remains the same: make remarkable bass far beyond its modest size, do so in a way that complements every interior’s style, and eliminate all visual distraction. Mission Accomplished.

Find a Dealer

REL Customer Promise Learn More

Designed for Elegance

Stunningly Simple

Perfect for small and medium rooms, T/5x seats perfectly into any décor. Floor-firing is part of its secret; bass energy strikes the floor and spreads uniformly throughout the space making it perform like a larger model. For those picky about style, the hidden bonus is this design eliminates even the grill, rendering it the purest of forms.

Slightly larger in volume than its predecessor, it actually appears to be smaller due subtle design changes to minimize it’s visual presence. Finally, 5 hand polished coats of lacquer in your choice of High Gloss White or Piano Black add luster to the softly rounded cabinetry.


Designed for Elegance

A 360-degree Upgrade

Many don’t realize the intense linkage between performance and design here at REL. Performance is everything to us and so it drives physical design revisions. Our engineers, recognizing the need for greater acoustic volume to achieve the goals of greater fluidity and power, turn to the designer who 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 familiar with no unnecessary adornment.


Faster & Deeper


T/5x borrows a single longthrow 8” (200mm) bass engine from its elder sibling, T/7x. Developed using a composite of aluminum and light paper, this cone captures details that will amaze, while supplying sufficient energy to plumb deeper than one would expect for its size. In T/5x, its throw–the ability to play louder–has been increased. Internally, the suspension received numerous upgrades akin to transforming the handling of a car from a family sedan to a true sports car. More power, greater finesse.


Amplified Power

REL's Reliable Brains And Brawn

T/5x builds on its predecessor’s reliable, expensive 125 W Class A/B amplifiers. Internally, key items significant to upgrading transparency and speed have been upgraded at no cost to REL’s legendary reliability. Separate inputs for High Level Inputs, Low Level Input (necessary for the increasing number of powered active speakers emerging on the market) allow for a natural, perfect transition from speaker to subwoofer. And in theater a separate, dedicated .1/LFE Input for Theatre performance permits automatic transition between music in high end 2-channel applications and home theater without needing to change a single setting. Magic? No, superior engineering.

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 2 reviews
Eric Thein
Center channel sub

A year ago I bought the HT1205 as my main home theater sub and was intrigued by the REL 3D sub setup. Hearing John speak of people using the TZero as center channel sub I immediately snatched one up when the price dropped to $249 during a sale to try out the idea. Wow, was I amazed at all the bass coming out from the center channel and how much of the movie I was missing without one. But the TZero was too small for the job and noticeably moving across the floor. When I heard the T/x line will be replacing the T/i I knew it was time to upgrade to the T/5x. The experience is that everything is fuller and less localized and blends in much better with my B&W center channel. Though I don't use this sub listening 2 channel I have noticed the musical scores in movies sounding more like I was actually in the movie theater than in my home. And in the movie Fury the sound of the tanks firing in the background have more oomph and weight as if you were there than merely background sounds. I have 6" drivers for my mains and center channel and the T/5x blends in perfectly, if you have a larger setup or a dedicated room I would go with the larger 2 of the T/x line.

Robert Anstett
Great addition to my 2 channel system

Very impressed with the quality and fit and finish of the T5x. Even upon unpacking, it is evident that REL takes care and pride in their products.
I am using with a pair of KEF LS50 wireless ii's and I thought the KEF's sounded very good before adding the REL. After adding the sub, I realized that there was a piece of the sound that I was missing. The LS50's sound even better with the T5x. The set up and integration was relatively quick and easy. The overall system sound is fantastic. It seems that using the high pass filter removes low-end strain off of the LS50's and the T5x picks up right where they leave off providing a fantastic full-range sound.
The only very minor negative I have with the T5x is that there is a minor buzz coming from the rear of the sub. It's worth noting that this is only audible when the room is quiet and I am near the sub. This doesn't impact listening experience at all.
Lastly, even my wife loves the look of the T5x in our living room, which is a win in my book. Highly recommended.


Suggested Retail: $679

No model in REL’s long history has sold more units nor engendered more affection than our T/5. Here reimagined in a modern, elegant, new form factor, T/5x’s mission remains the same: make remarkable bass far beyond its modest size, do so in a way that complements every interior’s style, and eliminate all visual distraction. Mission Accomplished.



Closed Box, down-firing driver

Active Driver Size & Material

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

Passive Radiator Size & Material


Low Frequency Extention

-6dB at 32 Hz

Input Connectors

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

Output Connectors


Power Output

125 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


1.6 Amp semi delay 230 volts operation, 3.15 Amp semi delay 115 volts operation


W x H x D

11.8 x 12 x 12.3 in., (300 x 307 x 313 mm)

Net Weight

31.5 lbs. (14.3 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.