The Firenze Extra features solid core Hybrid design Silver & Copper multi conductors cryogenically treated and fitted in a Gold Note proprietary design geometry using sealed Elastollan air tube filled with a special thick mineral oil working as dielectric, that also damps the conductor’s energy vibration. The Firenze Extra also features a genuine balanced design and custom made rhodium treated connectors. The Firenze Extra enables first class performance and superior audio purity for a lifetime of listening pleasure.