Check out this cool tour through a speaker manufacturing plant. I am quite surprised to see how much manual labor is involved and how much wasted movement of parts and pieces goes on. With some thought behind the production line I think the process could be greatly simplified. Although with a high end, high price product I guess you don’t need to be as fast and efficient as other products. At 8:05 you can see an interesting way of holding a pencil soldering iron. I guess for speed this is the way to go.