Professional audio components and highintensity combination are used to create a highquality crossover that truly restores the sound details, allowing you to feel the immersive and shocking sound effect.3 high temperature resistant large inductors. The inductors are fied with cable ties and special glue for high temperature resistant sound to prevent resonance.On the tweeter line, the tweeter circuit consists of capacitors in series and inductance to ground, and the switch can adjust the volume.The material is sufficient, the treble is clear and bright, the midrange 10 microfarad filters out the bass, and the inductance connects in series to filter out the treble, so that the treble and bass cannot pass through, and it is compatible with midrange speakers between 3 inches and 6.5 inches.Solderless wire connections correspond to the input, tweeter, midrange and woofer 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 powerful tool for speaker upgrades.Model 3003Filter characteristics 1 high, 1 medium, 1 low threefrequencyPower 250WImpedance 48 ohmsCrossover frequency Bassmidrange 850Hz, treblemidrange 2 ways, 200Hz5500Hz switchableSize 138 90 33mmMaterial PCMetalColor as shownPackage contents1 frequency dividerOnly the above package contents, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is 13 cm.