Providing you have easy to drive phones, what is so bad about just plugging right into the headphone jack when listening on a PC? There seems to be a school of thought that USB dongles/Dacs are better. Initially I thought plugging in a dongle was an improvement, but actually I am not so sure now...

Right now I have Verizon DSL internet service. I am getting less than the claimed download speed from verizon- I have never gotten the speed I am paying extra for. Typically I average between 200 and 380 kbps. I am supposed to get between .5 and 7Mbps. What's puzzling is the verizon "download...