Sforzato PMC−015EX Master Clock
Master clock that determines sound quality
All digital audio equipment such as network players, D/A converters, and CD players operate on the clock generated by the internal clock generator. When a digital signal is converted to an audio signal, it operates based on this clock, so the quality of the clock greatly affects the sound quality. The Sforzato master clock generator supplies a much higher quality clock than the built‐in clock of the device, and contributes to a dramatic improvement in sound quality.
Ultra−low near phase noise
PMC−015EX utilizes very low phase noise OCXO, which reaches neighborhood phase noise of −105 dBc/Hz at 1 Hz. The clock performance required for audio is not accuracy but noise characteristics. In particular, phase noise near the oscillation frequency, where the performance of the oscillator is directly linked to the sound, is important. The PMC−015EX clock oscillator is a large OCXO (constant temperature layer oscillator) that boasts the same near‐phase noise characteristics as the PMC−02EX clock oscillator, which surpass those of high‐performance rubidium.
Power supply with a margin
The clock is equipped with a large, generous, discrete analog power supply that uses a large‐capacity toroidal transformer and an ultra‐high‐speed, ultra‐low‐noise SiC Schottky diode to maximize the performance of the transmitter.
Unnecessary vibration and external noise are thoroughly suppressed by a robust housing with a 15 mm thick front panel carved from an aluminum block and a 3 mm thick aluminum body. The clock oscillator has a structure that floats from the housing and does not transmit vibration.
Discerning internal wiring and output terminals
With the cooperation of Sekiguchi Machinery Sales Co., Ltd. (Acoustic Revive), the internal wiring uses an elliptical single‐wire PC‐triple C wire. The purity of the power supply and signal is ensured by using a laborious wiring method that does not use a connector as much as possible.