I don't think of the word "detail" when I think of Conrad-Johnson. Their stuff has always seemed more about suffusing the sound into a more seamless package, which often comes at the expense of detail, at least to me.
BTW, I'm a total detail weirdo, and if you're looking at tube preamps that deliver detail (and you don't mind chancing a second-hand piece from a defunct company), you might consider Melos. They got a bad rap in the amateur review literature for having lousy customer service, but their stuff seems to fit the bill of what you're looking for.
BTW, I'm a total detail weirdo, and if you're looking at tube preamps that deliver detail (and you don't mind chancing a second-hand piece from a defunct company), you might consider Melos. They got a bad rap in the amateur review literature for having lousy customer service, but their stuff seems to fit the bill of what you're looking for.