Are the wire specifications useful? If you know how to solve simple network equations and have the specifications for the output impedence of your amplifier and the impedence of your loudspeaker in resistance, capacitance, and inductance, the answer is yes, they can be. What do they show? When solved they will give you the losses as a function of frequency, in other words the frequency response for a given length of wire in a particular circuit. They will also show that in most cases the effect is negligable at audio frequencies. How negligable? They are deliberately designed to be virtually non existant unless someone goes out of their way to make them otherwise. Nobody has shown that there is any other type of effect such as a non linear distortion effect caused by wire at the levels and frequencies of audio systems. When John Curl posted a thread about Fermi velocity of electrons on CA some months back which I read during one of my rare visits, I nearly fell out of my chair laughing. Not only didn't he understand it or know what it meant, he might as well have been seeing a fortuneteller or a soothsayer looking for any knowledge. And when he started referring to Resnick and Halliday, a 40 year old physics text used by engineering freshmen and sophomores, it made me wonder if this guy didn't have a screw loose in his head. Neutron, aren't you embarrassed to admit that you even engage him in discussion in public over the internet?????

BTW, if you do take out a book on network analysis to solve these equations for yourself, you will need a background of 2 years of calculus and a six month course of ordinary differential equations. If you've mastered those subjects, you will have all of the necessary intellectual tools to get the answers and understand them. Any third or fourth year electrical engineering students out there? What no takers? Anybody got a web site with a handy dandy canned software package to get the answers without doing the work?