It's almost like a vibration "buzz", clearest when you put yer' ear close to the dust cap... I unscrewed each peice,(1 at a time) then rescrewed... driver, amp/x-over & pass. rad., to make sure all parts were not touching/rubbing anywhere...wires to cone,foam, plastic amp. encloser, I'm thinking it does sound like a vibration, more than a damaged voice coil...Any idea's ?
Thank You/Cheers