REL Serie T/I

Overall performance

REL prefers to refine, to build generationally upon a solid foundation while searching relentlessly for every possible way to legitimately improve upon our past performance. With T/I, they have set a new standard for overall performance in this price category.

Pure and Balanced

A sub must weigh speed against heft, while ensuring true extension-depth-and do so in a physically harmonious package. REL T/I 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.


New materials and engine designs blend precisely the correct dimension of neutrality and lightweight, the result is seamless, effortlessly deep bass that blends perfectly with the main speakers. The combination is brilliant, exceeding the performance of competitors’ drivers that are many times more expensive

Proven Power

REL’s electronics are the brains and power behind our success. Serie T/I uses the same Class A/B power amplifier sections with large, high current power supplies, precision-wound transformers and an amazing reliability record that has powered some 100,000 RELs.

Zero Compression Wireless

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.

Connect to the emotion of live performance through detailed sound with amazing control and transparency. This is the M22. It is easy to find amplifiers that can excel in one or two areas, but the M22 is truly an amplifier that does everything well. Wide open-loop bandwidth, extremely low-phase shift, almost non-existent noise, harmonic and intermodulation distortion independent of load (load invariant), high current capability, low output impedance (high damping factor) uniformly at all audible frequencies-it all adds up to incredible performance. You just have to hear it to feel it.

Hi-Fi+ Highly Recommends T/9i

You know what you’re getting with REL; a fast, taut, and deep bass that manages to keep up with the speed of your loudspeakers. Unlike most subs, REL goes after the precision and subtlety in bass, rather than quantity and level. This is what makes the brand so attractive to audiophiles; rather than simply adding more bass, these subs simply add an underpinning of bass reinforcement, allowing the loudspeakers to act more openly and engagingly in the upper registers.

Alan Sircom

hi/fi+, REL Acoustics

And Tests T/9i Stereo Pairs

Ultimately the REL T/9i duo are bringing more bass to the system, but they are also bringing control; so those deep bass notes will have more energy, more clearly defined ‘shape’, and greater texture.

Alan Sircom

hi/fi+, REL Acoustics