Esoteric's Master Sound Discrete Clock delivers reference-grade timing for high-end audio systems. Built around the proprietary SXT-03 Custom Crystal Oscillator and precision Master Sound Thermo Control System with 128-step heater management, this master clock maintains frequency stability within ±0.01 PPM. The HCLD output buffer amplifier circuit ensures clean signal delivery across four 10MHz sine wave BNC outputs, making it ideal for synchronizing digital audio components and achieving sonic clarity at the highest level.