I have 4 of these ten inch 8ohm drivers that I bought about 3 or 4 years ago, I have forgotten where I got them or for what purpose. I seem to remember paying about 50.00 each and was going to build a Subwoofer. The only markings are on the magnet, it says 55-1250, under that is 8 ohm, under that is, made in Taiwan. I need to do something with these , does anyboby know how I might identify these guys. I used to buy a lot of stuff from Madisound, Parts Express and some other places that I cant remember. . . I have searched Madisound and PE but I cant find anything on these drivers. . . Help. . .