Rhodium plating or Silver?

Hi. Which mains plugs give the warmest sound.... silver, gold plate or rhodium plate? Also what would you recommend for subwoofer..Uk mains plug and iec connector?

I have thought long and hard about this. And I've discussed with other people. Regretfully there is no definitive answer known to me which could be considered reliable. There are just too many variables. Sorry. Re your sub-woofer question, I don't have a sensible answer for that either. Sorry again.

Neil