I like this gold-plated IEC in combination with the Furutech FI-E11-N1 (G) Schuko. The FI-15-Plus G provides a lot of refinement while still sounding relaxed and effortless. I use the two plugs with an old Vovox initio power cord, made form silver-plated solid-core copper. Massed strings are simply beautiful with this combo. Silk and cream.
The usual choice for an IEC together with the Furutech FI-E11-N1 Gold Schuko would be the Furutech FI-11-N1-G, of course. But I never warmed up to it. To my ears, the Furutech FI-11-N1-G IEC simply messes with the timing. E.g. instrumental groups in symphony orchestras lose their cohesion. In the long run, it's annoying and tiresome. I tried the FI-11-N1-G time and again, but I simply can't stand it.
To my ears, this Furutech FI-15 Plus (G) is the much more musical, natural and involving IEC plug. And on top of that, it's cheaper.