Vibrations from the upper unit is transmitted by the stacking cover to the shaft of the lower unit and from there to the lower unit's
feet or spikes, forming a privileged path for vibrations evacuation.
1.5 Power supply
The power supply of the P1 is a linear supply with multiple independent local regulation circuits.
The largest mains transformer is an oversized toroidal transformer and is used to supply power to the local regulation circuits,
which in turns, supply both phono stage boards. The transformer also supplies power to the digital areas of the unit (front panel
display, microcontroller and Digital Signal Processing devices - DSP - that monitor the unit).
Discrete ultra low noise regulators are used throughout the power supply to ensure the purest low noise DC feed possible to the
different audio sections. Each phono stage board enjoys dedicated analog regulators.
The second, smaller toroidal transformer inside the P1 is used as the Standby transformer to ensure green Standby mode, meeting
the latest energy saving regulations.
Both transformers have static shields between primary and secondary windings. They are mounted on a steel plate which is
isolated from the rest of the chassis by silent blocks to prevent vibration transmission to the unit.
Input AC voltage to the power supply can be set to 100V, 115V or 230V AC according to your local mains voltage.
8 P1 User Manual Rev 1.1
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