With this ground-breaking technology, which is the foundation of our top-of-the-line Reference & Ultimate cables, we prove vibration damping is a performance parameter. The Cable-Core consists of two individually insulated multi-stranded BRC conductors twisted symmetrically with two filling cotton cords of a bigger diameter and tightened with SDB or SASDB® dielectric binding under a consistent pressure. This foremost technology was named FTDA® (Fiber Torsion Damping, patent RU No.124834U). It is based on a principle of a conductor free floating in a viscous longitudinal fiber surround with high mechanical decrement. FTDA® provides effective mechanical conductor damping and decreases the electrodynamic noise, caused by the conductor vibration and movement in the Earth’s magnetic field. To ensure a sufficiently high decremental ratio, the cotton fiber was chosen as a damping material because of its high longitudinal strength and excellent filling ability. Moreover, a high percentage of air inside and between cotton fibers ensures a low relative permittivity and minimal signal energy losses. High inter-fiber torsion and low filler density enhances the efficient absorption of the mechanical vibrations affecting the cable in the whole audio frequency range (by as much as 50 times) and ensures the widest possible dynamic range, which in this case is mainly limited by thermal noise and thermoelectric contact potentials.