I restored a pair of AR2ax's and seem to have a buzzy mid, and seems to occur in specific freqs, mostly on some vocals. I'm trying to find how to test, investigate and identify the problem.
Any methods out there? Anything like audio tracks on CD?
Installed are HiViQ1r tweeters (RoyC mod), OEM pots in really nice condition, new caps, etc.
EDIT: I DO have a BK Precision function generator.