Instrument cables are essential for transmitting clean audio signals between guitars, pedals, and amplifiers. Early cables were basic, often leading to signal degradation and interference, but modern designs feature shielding, low capacitance, and durable connectors. Notable manufacturers include Mogami (Gold Series), Evidence Audio (Lyric HG), Monster (Rock Instrument Cable), and Planet Waves by D’Addario (American Stage Series). High-quality cables reduce noise, preserve tone, and provide reliability for both live and studio use. Length, connector type, and shielding affect signal clarity, making them a crucial but often overlooked component in a musician’s setup.