Electronics to go with KEF LS 50

I am considering purchasing various components that I can carry on a plane and set up a very musical home system in an apartment in Latin America (I listen to jazz, r&b, classic pop, African music and Brazilian music). I plan to get the KEF LS 50 speakers. I have thought about getting a REGA Brio/Apollo combo but am concerned that I can't steam Pandora through them. Alternatively I have thought of substituting an Oppo player for the Apollo or the Naim Uniti Lite or Uniti 2 in place of both Rega components. Your thoughts would be appreciated!