fuzztone: I live on a small island of 5k people. The most common hookup to the Internet here is via our single provider, who delivers access via a coaxial cable to the house, then to modem/router and onwards to my streamer.
ghdprentice: I believe I have a high quality streamer (Moon 390) but I am still able to hear the improving effects of decent linear power supplies on both modem and router, inline RF filter on the coaxial (as mentioned) and the quality of LAN interconnects between the units. I'm beginning to believe digital can be 'perfect' but only with extreme attention to input power, acoustic isolation and well designed components. I have digi-nasty-free stunning music filling my listening room. If I backstep on any detail, I'm left with just the playback of recorded sound.