The Centre-Plug replaces the traditional dust cap, making the cone both lighter and more responsive, while also cooling the voice-coil resulting in higher power handling and a stable sound reproduction when playing loud. The design produces increased power-handling capabilities along with a more uniform, precise and dynamic reproduction of sound.
The Centre-Plug also prevents potential break-up points where the dust cap would have been glued to the cone. In addition, it prevents over- and under-pressure behind the dust cap when the cone moves back and forth. The advantage is more dynamic and precise sound reproduction.

The totally unique tweeter features a clamped dual-concentric diaphragm and ventilated magnet system. Among other benefits, this extends the frequency range to a very low 1 kHz, allowing a smooth and seamless transition with the midrange, and then all the way up to 40 kHz,making it compatible with new digital multichannel sound formats. The voice coil is copper-plated aluminium wire, combining the low weight of aluminium with the superior conducting qualities of copper, and making magnetic oil for cooling and resonance damping unnecessary.

THX Ultra2 Certified.The most stringent quality requirements for home cinema in the world, compiled by LucasFilm. The THX certificate is your guarantee of high, uniform quality throughout the entire frequency range, clear and well-defined dialogue, accurate location of music and sound effects and, not least, effortless and realistic dynamics in reproduction – from the softest whisper to thundering explosions. A THX-certified system in your own home will offer the same level of sound quality sound that’s available in “professional” cinemas.