SMSL G1 External Master Clock – OCXO Precision Timing for HiFi AudioSMSL G1 External Master Clock OCXO Precision Timing for HiFi Audio The SMSL G1 is SMSLs first external master clock, designed to bring time back to music. With its SC Cut OCXO crystal oscillator, quad channel buffered outputs, and precision power supply, the G1 delivers professional studio level time synchronization for DACs, CD transports, and amplifiers. Built with meticulous design, the G1 ensures ultra low jitter, nanosecond synchronization, and a