This kind of amplifier all composed with discrete transistors in the signal path similar as Mark Levinson No. 26S. What I I think this could be having a controlling performance even after many years, tougher in reliability. As the transistor itself carries its own task to do them amplifying the signals with a much bigger area or space for the electrons flow and heat dissipation. There is less Miller feedback between collector and gate than an IC would make... from what I understand. The dual supply of this design would give better channel separation.
Listening comparison with Goldmund 27.3 preamp, I think the sound is similar in the first day, this is second day, the Mimesis 2 is doing running in. The Volume of bass is getting warmer and more in intensity. Mid and High is more transparent, especially the weak gimble sound, its tonal quality as light as a feather, bass is full volumetric in intensity.
Let's see more a few days.
HK Snob