Please find reviews below

CH Precision C1.2 / D1.5 / T1 and X1 Digital Front End review in “Stereophile” Magazine, February 2023
Complete review HERE
CH PRECISION X1 Power Supply review by ” HiFi Advice ” Magazine, March 2020
https://www.hifi-advice.com/blog/review/accessories-reviews/ch-precision-x1-part-1/
CH Precision L1 Preamp and X1 PSU review in ” HiFi Plus ” Magazine Issue 175 , September 2019
Complete review HERE
CH PRECISION P1 and X1 Phono Stage and Power Supply review ” The Absolute Sound ” Magazine, August 2019
http://www.theabsolutesound.com/articles/ch-precision-p1-phonostage-and-x1-power-supply/
CH PRECISION & WILSON BENESCH System review by ” HiFi Plus ” Magazine Issue 159 , May 2018
Complete review HERE
CH Precision M1 Monoblock Amplifier and L1 Linestage Preamplifier (with X-1 Power Supply)
This deluxe, Swiss-made, bridgeable, high-current monoblock amplifier and two-box (separate power supply) dual-mono linestage preamp—authored by the same engineers, Florian Cossy and Thierry Heeb (the C and H of CH Precision) who designed Goldmund’s distinguished electronics back in the day—seem to have some of the same sonic DNA as that of another Swiss company, Soulution. Like Soulution’s 701/711 amplifiers and 725 preamplifier, the M1 and L1 are ultra-fast on transients, ultra-high in resolution, ultra-low in noise and coloration, and quite beguilingly beautiful in timbre. CH Precision’s amp and preamp use no global negative feedback at their default setting (although users can add as much or as little NFB as they choose by means of menus accessed via the LED screens built into the front panels of both units). Personally, I chose not to use any NFB, as I think feedback slows these astonishingly “fast” electronics down. When they are configured in their default positions, I would be hard put to choose between the M1/L1 and Soulution’s 711/725 in every regard save for the bass, where the SMPS-powered Soulution (the CH Precision uses an extraordinarily high-quality transformer-based power supply) still holds an edge in weight, power, and color. When it comes to resolution and speed, however, the two fight to a virtual draw. Indeed, with a slightly less dark (i.e., “bottom-up”) balance the CH Precision may draw ahead by a nose in these two areas. (Then again, it may not.) Which should you choose? Well, that depends on your speakers, your source, your room, and you. One thing is certain: Those shopping for the best in solid-state need to listen to both these marques. – Jonathan Valin, The Absolute Sound
” Positive Feedback ” Online Magazine Review , Ultimate Digital Source
http://www.positive-feedback.com/Issue74/ch_precision.htm
CH Presicion X 1 Main features
- dedicated mains filter on each transformer primary, medical-grade type with ultra-low leakage current
- two oversized power transformers dedicated to the digital and analog sections
- cascaded power supply regulation stages for superior noise rejection
- allows the connected machine’s mains transformer to remain turned off for added noise immunity
- preserved galvanic isolation between the analog and digital sections of the connected machine(s)
Modularity
A second regulation board can be inserted into the unit to allow the use of a single X1 with two CH Precision products.
Remote operation
The X1 is entirely remotely operated from the connected machine(s), and does not need to be manually switched on or off. Once placed in standby mode and connected, the supplied unit(s) are turning the X1 on or off automatically