If you don't have a DMM, buy one, they are at most $20-$25 at pawn shops or whatnot.
They will help you greatly...if not, just take it to an Audio Shop and I'm pretty sure they will be able to test it for you. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif