Preamp for Upgraded McCormack DNA-225

Would you consider a SOTA passive, the balanced Sonic Euphoria? Perfect also for the DNA's 100kOhms input impedance.

Vladimir, it is true about the impedance. One must choose wisely in that regard. A finely discrete voulme contril is also necessary.

I tried a Bent passive with the Mc at one point. It was superb in many ways, and turned out to work perfectly in another person's system, yet I missed a bit in terms of dynamics and low end cotrol with mine. I'd have to do a loaner plan in my system before buying another.

I don't know about the Bent, but the Sonic Euphoria uses an autoformer that solves the dynamics problem of passives. It is totally transparent.