@geoffkait
You have no idea what you are talking about. How do you think the woofer moves back? Which way do the electrons "flow" then? Take a quick look at a audio wave. Ever noticed it has a negative side? It's called AC for a reason. Ever heard of balanced amplifiers: there is no ground.
Take the case for two wires connected to a speaker, + and -. When the current travels toward the speaker on one wire it travels the opposite direction on the other wire. And vice versa.
You have no idea what you are talking about. How do you think the woofer moves back? Which way do the electrons "flow" then? Take a quick look at a audio wave. Ever noticed it has a negative side? It's called AC for a reason. Ever heard of balanced amplifiers: there is no ground.