Can anyone tell me whether:

1. Is the wireless SB2 likely to cause interference to an audiophile digital component? It will be sitting on top of, and its digital output connected to, a dCS Purcell upsampler.
1a. Am I better off with a the wired version to avoid interference?
1b. Can the Wifi be turned off so that SB becomes a wired one if it is causing interference?

2. Can SlimServer/SB2 be used to play a non-ripped CD? In other words, if I have not ripped a CD, can I drop it in the CD drive of the computer that is running SlimServer and stream an uncompressed bitstream to the SB2? Can this be done in a user-friendly way?

Thanks for any help!