By developing and manufacturing its own membranes, Focal pushes the limits of innovation in acoustics. The sandwich "W" membrane of the loudspeakers plays an essential role in sound reproduction. It consists of two sheets of glass placed on either side of a central foam body; a sandwich construction that enables us to master the three key parameters of a good loudspeaker: lightness, rigidity and damping. This flagship membrane of Focal know-how perfectly optimizes the frequency response curve, providing low distortion and total listening transparency. Sound is the ultimate in precision.

While our engineers are experts in the development of exclusive diaphragms, they also innovate in all the components that make up the loudspeakers, such as the surround that connects the diaphragm to the frame, the performance of which must be mastered. Introduced in 2015, Tuned Mass Damper (TMD) technology with harmonic damping consists of the addition of finely positioned toroidal weights to stabilize the surround for even greater sonic neutrality. This technology enhances the midrange and the erratic behavior of the surround between 1 kHz and 2 kHz.

This innovative technology enhances tweeter performance by controlling the acoustic pressure behind the dome and minimising internal resonances through infinite acoustic loading, ensuring pure and distortion-free sound reproduction.

Beryllium is the only metal capable of scratching glass due to its high rigidity, and is the material of choice for tweeter diaphragms. Two years of research and development at Focal have resulted in the shaping of an inverted dome in pure Beryllium capable of covering more than five octaves. An exclusive technology that we have combined with another major innovation: the "M" profile, which brings two decisive advantages: an even lower directivity of sound, for an ever more flexible listening position, and a significant gain in dome rigidity, which further reduces distortion and thus delivers quality sound. It is combined with a larger coil (25 mm) for unrivalled power handling.