★ FI-50 series of the finest models of the inlet plug of Furutekku has evolved further. To prepare a special material "NCF" as a countermeasure against static electricity in the body part, it has led to dramatic effect. ◆ electrode unit adopts α- conductor nonmagnetic rhodium plating pure copper materials, ensure a stable connection. ◆ evolution of the earth jumper function "short ring function" loading. Reduce the electromagnetic unnecessary radiation disturbed generated from the connecting portion of the blade portion and the conductor of the internal plug by eliminating the potential difference between the mounting screws of Housing and the electrode part, to improve the sound quality. ◆ body is a special ceramic powder and carbon powder of nano unit formulated at a constant ratio to the nylon + fiberglass, delivers a dramatic vibration absorption effect. Further compounding the special material "NCF" as a countermeasure against static electricity. In addition to the strong damping effect of the past, electrostatic effect has been much enhanced. As a result, suppressing the generation of noise, increased silence feeling, by the turbidity of the sound is lost, pull out the sound of the original charm that had been buried. ◆ Housing is carved from a stainless steel alloy, adopted a special resin with a vibration-damping properties in the interior, is a three-layer structure in which it finishes the outside with silver carbon fiber. "Wire locking mechanism" wire attached (see below photos and illustrations) is drum-shaped bulging (convex) base and concave strongly tightening mechanism the wire with the nut. Contact area to be fixed to the wire of the concave nut U-shaped guide is secured greatly, it is firmly held without wires is distorted.