If the Rotel has a detachable power cord, get 2 while your at it. If you go to http://www.allelectronics.com/ they are $3.25 each with $6 shipping. Model LCAC-90. If you have something in your house that has a fatter IEC cord, borrow it and try it first. We'll get you hooked on tweeking eventually, Ha!!!!
A 6 foot 14 guage (14-3) black detachable power cord is about $4. I have hands-on experience with every CD player Cambridge has made in the last 8 years, and the cord they give you is not very good.
The power that makes the speaker go starts in the wall. Just like computers: "gargage in, gargage out". Happy Listening and enjoy.