The latest version of the Cogan Hall inter-unit cable. Created after years of research and development. A very rare and unique cable. The best dielectric is air, so the dielectric in the cable is air. The best connector is without it. The conductor becomes an RCA connector.
Handmade. Made of hollow copper tubes (high purity copper). The tube is inserted directly into the RCA input (output).
No dissimilar metals, no coating or soldering! This is a very natural sounding, neutral, harmoniously completed cable with exceptional midrange frequencies