They're A|D|C, which I don't believe are manufactured any more, or were bought out by another manuf. Back in the mid-eighties these were the cat's meow; I know because I installed a set in my 1972 Saab V4 back then. I was surprised to see them when I bought the BMW three years ago because I had not seen or heard of them in a long time. They sound phenomenal. It looks to me that a fair amount of custom fabrication went into installing these puppies...the rear pods were removed, and the package shelf cutouts were enlarged to accomodate the ovals. The car also has a pair of the heavy self-contained bookshelf ADC's installed in the rear "armrests", as well as midrange and tweeters up front, Alpine amp and CD headunit. Sounds fab.