1 Technical highlights
CH products are proudly designed and manufactured in Switzerland by CH Precision Sàrl. Our engineers have put all their know-
how and ingenuity to bring you the X1, a top performance, ultra low-noise, high current capable, DC-regulated external power
supply capable of powering up to two CH Precision units.
An X1 fitted with two regulation boards can be used to power two CH Precision devices simultaneously (such as a C1 controller, a
D1 disc transport, a L1 line preamplifier or a P1 phonostage), with the advantage of dedicated transformers for analog and digital
sections, and cascaded voltage regulation. However, for ultimate performance, the X1 can be dedicated to power a single CH
Precision unit.
X1 main components
(1) Mains switch and power cord receptacle (on back panel)
(2) Adjustment shafts and screws
(3) High noise-rejection mains filter
(4) Digital power supply transformer
(5) Standby power transformer (ensures green mode Standby)
(6) PMOLED display (on front panel)
(7) Power supply output connectors (one or two per X1), must be connected to C1 and/or D1 and/or L1 and/or P1
(8) USB A-type receptacle for firmware update
6 X1 User Manual Rev 2.1
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