RAMM Audio's AIR 25 is a top-of-the-range, affordable RCA interconnect cable. The conductors of this cable are made of OFHCC copper, an oxygen-free copper with high conductivity. Both conductors have a solid core to limit distortion and are separately shielded with drain wire. The AIR 25 has a triple-layer shield made of AL Mylar aluminum foil and polypropylene (a semi-crystalline thermoplastic polymer), so it is protected from noise and interference. "AIR Geometry" technology with natural cotton filling is also used by RAMM Audio in the design of this RCA modulation cable. Finally, the conductors are soldered to rhodium-plated Air25-782SR RCA connectors for corrosion and oxidation resistance as well as maximum conductivity.