REL Acoustics T/zero MKIII Subwoofer


BERKELEY, CA (PTA) — REL Acoustics recently launched their updated T/zero MKIII ($449 USD) subwoofer, which receives a new woofer, and redesigned class-D amplifier section. The T/zero currently occupies the only spot in the Serie T line of subwoofers, which still bear a family resemblance to the larger Serie T/i models.

The T/zero is designed for small speaker applications, or for a room with extension speakers such as in-ceiling speakers that may need a bit more help on the low end. The T/zero won’t reach to the depths of their larger Serie S models we covered (here) at RMAF in 2019, but it’s still a great performing piece with many applications. Previously there have been two iterations of the popular T/zero subwoofer. It’s only the new MKIII that now features a new alloy driver, and redesigned amplifier. More detailed information from REL Acoustics is enclosed below.


Press Release Enclosed


T/zero MKIII is every bit a true REL, just smaller. It enriches even modest systems with power and natural bass by bringing the quality and full REL connectivity suite along with an all-new aluminum cone that provides much greater stiffness to the driver for punch and a powerful, reliable Class D amplifier, all at an attractive price point and size. Ideal for apartments, flats, studies, anywhere space is limited.

Miracle In Miniature


T/zero is, in many ways, the most difficult design we have ever executed because never before have we delivered so much for so little. Five coats of your choice of black or white high gloss lacquer as in all Serie T, NextGen Class-D amplifiers, our famous High Level Input, plus a separate .1/LFE input stage with its own volume control to get theater levels AND music perfect without racing to adjust or looking for a remote control.

The jewel of the MKIII is the new aluminum-coned driver, a rugged 6.5” unit with exceptional output and low bass extension for its size. While it won’t drive medium or large rooms hard, we make plenty of larger models that handle that task, T/zero MKIII remains a miracle in miniature

Scaled for the Simple Life

Compact Power & Finesse

At REL every design begins by defining and designing the best bass engine for a given application. With its new aluminum-coned long throw 6.5” driver, the MKIII is powerful and articulate, delivering surprisingly deep bass. Able to fill smaller spaces effortlessly. Have a much larger space? Turn to one of our larger models, there are plenty to choose from.

Outsized Performance

Bass Beyond Its Size

At REL every clean sheet design begins by defining and designing the best bass engine for a given application. While the long throw 6.5” is our smallest-to-date, but make no mistake it is powerful and articulate, able to fill medium-sized rooms effortlessly. Have a much larger space? Distribute them throughout for an unobtrusive spacious presentation of music and film sound.

For more information, visit REL Acoustics at