Concorde dj s basic model for scratch and back cueingdj s is a solid built cartridge in a blue nylon material it has a fine spherical stylus and a special developed and extremely balanced cantilever that provides outstanding rigiditynot only does the cartridge have a most sufficient tracking ability it is also nearly unbreakable and provides the djs with the most needed stringency furthermore it equals very low record wear an advantage for busy dj the dj series has been known to many as