Preamp for Upgraded McCormack DNA-225

I did a bit of cursory research on the LS-5. Why would a pre with that kind of original price tag come with what appears to be a regular, fixed power cord?

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David,
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If you are willing to live with RCA ins and Balanced outs, consider Supratek.
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I will give you a call on Friday or Monday at work or let me know when to call you at home over this long weekend.
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Rgds, Larry

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.