Does sub woofer speaker has two coil?

Yes, subwoofer speakers can have two voice coils, which are referred to as dual voice coil (DVC) subwoofers. This design allows for more flexible wiring options and can improve power handling and impedance matching with amplifiers. Dual voice coils enable configurations that can better suit the specific needs of a sound system, such as achieving different resistance levels for optimal performance. However, not all subwoofers have two coils; many still use a single voice coil design.