Voice Coil: Ø 38 (1.5) Frequency Response: Hz 25 - 400 Magnet Size D x d x h mm (in.): 134 x 55 x 36 (6.28 x 2.17 x 1.42) Weight of one component kg (lb.): 5,11 (11.27) Magnet: High density flux ferrite Cone: Polypropylene Xmech mm (in.): 20 (0.79) « 123