Naim Biwire 4m Speaker CablesNaim's own speaker cable engineered specifically around the electrical characteristics their amplifiers are designed to see. The NACA5 isn't just a generic cable with Naim branding; it's a deliberate engineering choice with specific capacitance, inductance, and resistance values that keep Naim amps stable and performing as intended. At 4 meters it hits Naim's recommended minimum run length, and the biwire configuration gives speakers with separate HF