I spent about 30 minutes this afternoon playing a friend's new laminated Kohr (I think I spelled it correctly). It had excellent pizz tone but when I put my bow to it, I was really impressed with its sound. It was easily head and shoulders above my ES-9 Engelhardt and sounded almost as good as some carved basses I have played. The thing I really noticed was its weight or rather the lack thereof. I am curious enough to weigh both it and my bass because it feels like it is probably 3-5 pounds lighter than my bass. Is weight that big a factor in the tone, resonance, volume? Why or why not. Also, what does an "average" bass (if there is such a thing) weigh?