Alpine SWX-1243D Type-X 12,Alpine SWX-1243D subwoofer - Alpine Car Audio,Alpine SWX-1243D at Onlinecarstereo.com,Disassembly of an Alpine SWX-1243D cont' (updated pics show critical meltdown of VC1 due to spider failure) : r/CarAV,Disassembly of an Alpine SWX-1243D cont' (updated pics show critical meltdown of VC1 due to spider failure) : r/CarAV,