AXTON 16.5 cm 2-way coaxial speakers (pair). Equipment features: Compact basket construction made of sheet steel in Euro-DIN format. Strong strontium ferrite magnet with lightweight injection-molded polypropylene membrane for precise reproduction over the entire transmission range. polyurethane foam bead - 13 mm myaric dome with ferrofluid cooled neodymium drive. cover grille included in delivery.