SPDIF is built from 5 separate geometries running in parallel consisting of (1) Galileo Digital Silver Matrix geometry, (1) UEF digital Silver Matrix geometry, (1) Handmade Pure Silver AirString geometry, (1) Handmade Pure Tungsten AirString geometry, (1) Handmade Pure Copper AirString geometry . Each of the 5 geometries are individually sheathed to cancel resonance and improve flexibility.