For sale, I have 3 Crystal audio CMpX2. These are the 2nd generation. Bascially the 10" versions are not for sale to the public. They were aquired through a friend who competes. These rival eclipse alu/titaniums. Car audio n' electronics did a review several months back, and they reccived excelent results for SPL and Sq (12" version). These are bascially 12" magnet structures in a 10" size cone. Ive used them for about 2 months. Had warantee work done to my maxima, so i removed everything. Paid 325 each due to them being rare. Will do 200 each. obo