I've got what appears to be a EVM-12S in one of my early Boogie 1x12 cabs. It has no markings on it other than "125" and a partial sticker that says "EV 12 inch speaker" on the magnet. It has the shorter frame (just under 5" tall), but it has an aluminum center/coil cover. I though these all had paper centers like my Mesa/EVM-12L? Thanks for your feedback