Firstly, I am the distributor of this product in Europe, so I have a vested interest! But to answer the question, if you think of your mains cabling in the same way as an Ethernet network, you are on the right lines. The whole concept of Powerline networking is not new - only now has it become reliable. For many people it is more satifactory than wireless alternatives. If you are just interested in multi-room audio, and not Interent Radio, you don't even need a computer. Our company is happy to answer any questions you care to thow at us. Regards ... Graham Cross