Hi Pharma, I agree with your finding on X-01 as transport... Thus, I have experimented by applying various combinations of Nordost Sort Kones under the device... Found that supporting X-01 with a Titanium Kone just behind each footer, salted by one Bronze Kone somewhere undeer the middle of the chassis, is transformative... Staging, top to bottom extension is increased, harmonic integrity is enhance, and so is linearity, all without causing any unmusical cross-modulation in the mid treble.
I can only conjecture that the enhancements may similarly affect newer / more advanced devices like the P-02, K-01, K-03... And mayhap the upcoming P1.
As an aside, I am experiencing further enhancements by applying the same configuration under the Rowland Aeris DAC.