Looking for some advice,  Just picked up a pair of my fathers 1964 AR 2ax speakers from the speaker repair shop. After reading through this and other forums about the many successful repairs done to them, I decided to let a "pro" diagnose and repair them. I had brought them in because while both woofers produced sound, the mid and tweeter on both only crackled to life if I slowly turned the adjusters in the back to make contact, and only stayed there as long as I held it with a little press