http://www.tdpri.com/threads/noad-fender-1980s-superchamp.820470/ here's my thread, there's a pic of my speaker and the Emi some others have. 064121 appears to be a Fender part number and it appears on the small magnet Emi, Pyle and this large magnet version. I used to work in an OEM supplier and I know we put their part number and brand stamps on stuff to go in their vehicles or parts boxes - sometimes to fill an order we supplied a better part i.e. better linings on a clutch plate than the customer wanted to pay for. Maybe Eminence started supplying the better speakers for all Fender orders to simplify production? Or maybe a batch got mislabelled? Maybe Fender got complaints or respecified it, or Musicman or another customer and Eminence rationalised their line? Either way - it's not a terrible speaker.