Nordost entered the hifi audio market with the groundbreaking design of speaker cables. The 4 Flat was one of the first cables to use the FEP extrusion technique, which revolutionized speaker cable performance. Identical in construction to the 2 Flat, but with double conductors, the 4 Flat Speaker Cables are the perfect solution for high-performance amplifiers and bi-wired speakers in audio and home theater systems.