@emerald . Just a suggestion, if you haven’t already done so you might consider post yoingur question on What’sBestForum, there are a number of CH threads on it so you may be able to get direct feedback from members with experience with your CH pre/amps
https://www.whatsbestforum.com/search/642140/?q=ch+precision&o=relevance
https://www.whatsbestforum.com/search/642140/?q=ch+precision&o=relevance