Just compare the data with the graph, I think significant is the right word. <img src=http://www.newvisual.com/questions/data/xdsl-speeds.jpg> Distance in feet Asymmetric Symmetric 1,500 90 Mbps 45 Mbps 3,000 80 Mbps 40 Mbps 4,500 46 Mbps 23 Mbps 5,500 30 Mbps 15 Mbps 6,500 16 Mbps 8 Mbps