I have a couple Audiobahn Alum10X driver's laying around here. I shipped them to someone via fedex and they cracked the baskets pretty bad. I've since glued them back together with JB Weld epoxy(amazingly strong stuff). I played some 20Hz sine waves and they play just fine. I more just want to get rid of them than make money. I don't want ship them again so local pickup in the Northern VA area. Even though they play fine, I'll ask $30 for the two drivers given the cosmetic condition of the basket. I'll consider a trade for a couple HD DVD or Blu Ray discs as well(I'll consider anything). These actually model well for a home sub because the have a relatively low Fs. Here are the T/S parameters: Fs - 24.3Hz Qts - .38 Qes - .43 Vas - 37L Re - 5.6 Ohms Le - 1.6mH Xmax - 13mm one way Pmax - 800w At $30 for both drivers you can just throw them off the side of a building to see what happens. I can email pics by request.