Visaton 17-cm mid-range speaker with rigid, anodised aluminium membrane, aluminium die-cast basket and rubber surround. Minimum mechanical and electrical losses with pole core ventilation, ventilated spider and cap tone voice-coil carrier. https://elecena.pl/product/18519918/1302-visaton-subwoofer-17-cm 2021-05-20 https://elecena.pl/product/18519918/1302-visaton-subwoofer-17-cm 2021-11-13 https://elecena.pl/product/18519918/1302-visaton-subwoofer-17-cm 2022-12-02 https://elecena.pl/product/18519918/1302-visaton-subwoofer-17-cm 2025-01-23