SB AUDIENCE BIANCO-8MWN150, 205.6mm Paper Cone Neodymium Pro Midbass 8 OHMFeatures Proprietary cone paper material made in-house Neodymium magnet 2.4" voice coil with APC (Advanced Polymer Coating) Minimum damping fiber glass voice coil former CCAW voice coil wire for reduced moving mass Vented pole piece for reduced compression Long life silver lead wires