The importance of clock selection is critical to the overall performance of a DAC. Any jitter (tiny timing variations) or noise, will cause the DAC to perform analog conversions at incorrect and variable rates, resulting in clearly audible negative effects.
The ORATORIO uses crystal oscillators specially manufactured, according to very specific specifications. These oscillators provide dramatically lower jitter and noise compared to standard components. Two separate oscillators for 44.1 KHz (44.1, 88.2, 176.4 KHz) and 48 KHz (49, 96, 192 KHz). The clock section is powered by its own power supply, using ultra low noise regulation.
The digital-to-analog conversion is performed by a texas instrument circuit working in “DirectPatch” mode, this mode being used to cancel any noise and other digital artifacts..
The digital section is isolated from the analog section, with separate power supplies and separately regulated for each. Particular attention is paid to the layout of the circuit and the selection of components. A quality conversion starts with a clean, stable, low-noise power supply. A discrete dual power supply feeds the DAC into two ultra-linear and independent low-noise power flows. This discrete power supply offers optimal thermal performance to optimize insulation between all major components.
Like our gold plated PCBs, the choice of the internal component remains a crucial element.
In particular TAKMAN (REX) resistors or Nichicon KZ type capacitors are essential to guarantee uncompromising musical quality. Each component is matched by hand.