AudioQuest FireBird Source is engineered for premium constant-current components requiring the highest level of AC power purity. This source-optimized cable combines Solid Perfect-Surface Silver (PSS) and Perfect-Surface Copper+ (PSC+) conductors to achieve superior signal transfer and minimal noise floor. The integrated noise-cancellation architecture—featuring PSS drains, 72V Dielectric-Bias System, and RF/ND-Tech technology—systematically eliminates radio frequency interference and AC line noise that compromises source component performance. ZERO-Tech ensures completely unrestricted current flow, allowing preamps, DACs, and digital transports to operate without impedance-induced compression or signal degradation. By providing exceptionally clean AC power to your source components, FireBird Source maximizes information retrieval from your digital and analog front end, revealing previously masked detail, improved soundstaging, and the sonic transparency that distinguishes reference-quality audio reproduction.