The Klyne is an extremely musical preamp, and not just a matter of what one likes if ones reference is live music. If you have ever heard a live triangle, and you then play a recording of one on a Klyne, the Klyne will sound the most true to life. It surpassed my ARC SP-11 by far in that one respect, although I owned it back around 85-88, along with the '11 and the CAT. It's quite low in noise and extremely pure-sounding, meaning distortion. I've heard very few preamps since then that mimic live instruments as well as the Klyne, including my CAT, AI, Jadis, and a few others. I wonder if Klyne managed to cure it of its non-dimensionality, a problem back then, but, perhaps, not now. The Modulus is also quite low in noise. Lower noise will generally render a purer sound due to the lack of "fog" surrounding the air around an instrument.
