Setting a new standard for architectural speakers, KEF’s Extreme Home Theatre pushes the boundaries of technology to bring you best-in-class acoustic performance, impeccable design and easy installation too. Hundreds of performance and quality assurance tests have been undertaken to be THX^® Certified Dominus and THX^® Certified Ultra, proof of the system’s ability to deliver breathtakingly realistic, completely immersive, cinematic sound, just as the director intended.

For over 35 years, THX has set the standard for the audio fidelity of entertainment experiences. THX^® Certification is a globally recognised assurance of uncompromising quality, consistency and performance. It blends art, technology, and the dynamics of real world listening environments to ensure products deliver the artist’s true vision.

Each THX^® Certified product has gone through hundreds of performance and quality assurance tests, from output levels, frequency response, signal-to-noise ratio, distortion and bass management to recreate high impact cinema sound and best-in-class audio fidelity. THX guarantees high performance and premium build quality.