CH X1 - 1.2 Mechanical construction

When the X1 external power supply is connected to a CH Precision device, the latter's internal power supply is turned off (only the
standby transformer remains active, requiring its mains lead to remain plugged in). Turning the internal power supply off ensures
that no power supply induced noise or radiations are generated inside that unit, thus permitting optimal operating conditions for
the circuitry.
Moreover, all DC-regulated voltages delivered by the X1 get regulated once more inside the CH Precision unit it powers, leading to
vanishingly low noise floor.
1.2 Mechanical construction
The X1 external power supply is assembled from high-quality aluminium and steel elements with no visible screws on the front, top
and side panels. The front panel, base, side panels and top cover are machined from aluminium. The mains filtering section is
isolated from the rest of the machine in a dedicated compartment to avoid any contamination of unclean power distribution grid to
the secondary windings of the transformers by radiated noise. Pin assembly of all chassis elements provides smooth joints between
elements while screws every 6cm ensures protection against electromagnetic interferences. First class mechanical and chemical
surface treatments provide the luxury finish of the X1.
Four steel feet support the unit. Each feet ends with a elastomer ring to sit on delicate surfaces but is also equipped with a height
adjustable steel spike to fine tune unit positioning. Horizontal adjustment is done with the provided screwdriver through the four
adjustment shafts accessible from the top of the unit. In addition to providing convenient horizontal adjustment from the top of the
unit, the shafts also serve as vibration evacuation channels for any stacked unit. Special shaft covers are provided to interface with
the spikes of the stacked unit. Any vibration from the upper unit is transmitted by the shaft cover to the shaft and from the shaft to
the lower unit feet or spike, forming a privileged path for vibrations evacuation.
8 X1 User Manual Rev 2.1