It is not. It would be connected through ML cable to the Audio Master.
For wireless some here including myself use the airport express (http://www.apple.com/airportexpress/) which works together with Itunes.
However you would not be able to use the Beo unless you connect a IR receiver or a Beoport to the PC and have it in line of sight.
I have 3 of those Airports and did connect an IR module to my Imac. Works OK even though I miss control. I might add a 2 way remote from Keyspan down the line when they finally introduce the PC/Mac version.
http://www.keyspan.com/products/TVI200C/
Ugly solution though.
BS9000, BS2300, BC2, BL2500, BL3, Bl2, BS1, BV8, BC4, A8