Serie T

Serie T enriches even modest systems with power and natural bass, bringing the quality and full REL connectivity suite, long throw drivers and powerful, reliable amplifiers to a new lower price point and dimension.

Scaled For Life

Tzero is every bit a REL, just designed to enhance the soundstage in the unique spaces we live. We started with the end user in mind, taking into account the challenges and opportunities smaller studios or apartments and studies or home offices present. Tzero reflects this end-use design, providing the fast, deep, substantive bass RELs are renowned for producing in a form that doesn't just accommodate these spaces, but leverages their unique qualities.

Meet Serie T


The redesigned Tzero MKIII is powerful, articulate, and delivers surprisingly deep bass, filling smaller spaces with ease. With the MKIII subwoofer, we set out to design and build the best bass engine imaginable for its application.


Punching far above its weight class, Tzero MKIII delivers 100 high-current watts from a NextGen Class D amp and features the same high-end input filters, crossovers and limiters as our larger models.


Tzero MKIII includes the full REL connectivity suite, fast 8ms delay filter set, and our renowned High Level Input, as well as a separate .1/LFE input with standalone level control and a standby circuit that reliably comes alive at very low levels.