If this is a duplicate listing...sorry. I really don't care about an "audio" comparison on just one signal on a quiet band, but wow...look at the size difference! I guess guys like driving an 18 wheeler, but I'll stick with the K3 any day of the week. YMMV http://www.youtube.com/watch?v=WKwJ8Cu8lA0&feature=fvw de Doug KR2Q