Quote Originally Posted by Alien_Shore View Post
How did you conduct this test on comp drivers? Is it an audible test "click" that you listen for, since you can't see the diaphragm?

Actually with the back cover off you can. Test clicks are often a quick and dirty way to check continuity. An AA battery puts a miniscule amount of power to a driver. A 9v battery may not be wise.

As a follow up- most common colors are red or white for positive, black or green for negative.