Using ultra- capacitors and ultra-high power inductors and resistors. High-power special resistor, fast heat dissipation, making the frequency divider have a longer life. This sound crossover is suitable for 10-inch, 12-inch, 15-inch outdoor speakers, stage speakers, conference speakers, etc. The crossover divides the sound signals of different frequency bands, amplifies them respectively, and then sends them to the speakers of the corresponding frequency bands for playback. High-quality sound playback requires 2-way frequency division and electronic frequency division processing. DIY upgrade tool for professional stage speakers to obtain long-term high-quality sound quality. The frequency division point is in place, high-sensitivity electronic automatic protection for treble, ultra- particle capacitor and ultra-high power inductor protection for bass. Speaker systems last longer. Material: Metal colour: Package Contents: 1 x Speaker crossover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.