Large capacity, reasonable design, beautiful appearance, quality achieve full self control. | Inductance adopts anaerobic copper winding , and pure copper wire. | The crossover soprano + available bass binary frequency sound box, can also be used in 2.1 the high small satellite box and automotive loudspeakers. | Implementing overall debugging, no welding, using very convenient, and listening to the sound effects can implement debugging control according to their own interests. | Package included: 1 x Bass Frequency Divider .