NEODYMIUM-IRON-BORON MAGNET Vifa’s NE Series full-range drivers feature an innovative sculpted, open cast aluminium basket design minimises internal acoustic reflections. Cone is constructed from coated natural wood fibre, with a butyl rubber surround designed by finite element analysis for linearity of performance. FEA techniques also contribute to the titanium bobbin motor’s copper cap, which reduces inductance and extends high frequency performance.