EQI

For perfectly reproduced high frequencies, Focal engineers research and develop specific tweeter cones. Shapes and materials play an essential role in reproduction. For the FRAK tweeter cone, they chose aluminum/magnesium, combined with an M-shaped profile. This revolutionary combination in Car Audio offers a beautiful descent in frequency and superb damping. The lightness of the cone allows the tweeters in particular to shine in the treble extremes.

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.

Made in France in our workshops, the TNF aluminum/magnesium inverted dome tweeter delivers smooth, clear treble. The surround that connects the dome to its support uses Poron, a shape-memory material. This surround is directly derived from Focal's famous Beryllium tweeter, and reduces distortion by a factor of three between 2000 Hz and 3000 Hz, the most sensitive zone for the ear. In addition, a waveguide has been developed to perfect spatialization and further improve the inverted dome's very low directionality. In the horizontal plane, the frequency response is within +/- 0.5 dB. This performance guarantees an incredibly stable soundstage.