Vibe Blackair C12-V6 Bass Box 8" subwoofer with 12" passive subwoofer in box

Driver: BlackAir 8. The 12" subwoofer is a "passive radiator". Due to its design, it is the 8" subwoofer that is actually the subwoofer that is connected to the amplifier and not the 12" one. Passive radiator.