Furutech FPX-Cu High-Performance Duplex Receptacle in un-plated Phosphor Bronze

Japanese audio commentator, Masamitsu Fukuda says the following on the new plating: The new Rhodium plating offers high resolution, transparent and precise sound. The high signal-to-noise ratio delivers greater contrasts across the entire frequency spectrum along with tight and precise bass. Rhodium especially excels in the high frequencies which are detailed and clear. Overall rhodium yields a super responsive, delicate, expressive and neutral sound. Gold plating is ideal for enthusiasts who prefer a flowing, somewhat warm and softer sound. With a slightly thicker layer of gold plating than before the sound is a touch more precise allowing a stable soundstage and a smoother tonal balance. With better response and dynamics the new cable yields a detailed, powerful bass and an overall expressive sound. The un-plated copper reveals none of the characteristics of the rhodium- or gold-plated versions. It is full of vitality and energy with powerful bass and midrange texture so some people will find this model very interesting indeed. There is a slight tendency towards brightness in the midrange but the clarity yields a very special vibrancy to the sound. It sounds very attractive with full-range dynamic music like jazz.