professional audio components and high-intensity combination are used to create a high- crossover truly restores the details of the sound, allowing you to feel the immersive and shocking sound effect. 3 high-temperature-resistant inductors. The inductors are fixed with and glue for high-temperature-resistant audio to prevent resonance. On the treble , the treble circuit is composed of capacitors in series and inductance to the ground, and the switch can adjust the volume. The material is sufficient, the treble is clear and , the midrange 10 microfarads filter out the and the inductance connects in series to filter out the treble, so the treble and cannot pass through, and it is compatible with midrange speakers between 3 inches and 6.5 inches. Solder-free wire terminals correspond to the input, treble, midrange, and speakers, which means the frequency divider can be connected to it without a soldering iron. The material is very sufficient and easy to use. It is a tool for speaker DIY upgrades. Model: 3003 Filter characteristics: 1 high, 1 medium, 1 low three-way frequency Power: 250W Impedance: 4-8 ohms Crossover : /midrange 850Hz, treble/midrange 2 ways, 200Hz-5500Hz switch adjustable Size: 138 x 90 x 33mm Material: PC+Metal Color: as shown Package Contents: 1 x Frequency Divider Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.