Advantages and Features: 1. Audio-specific anti-interference high-power high-current high-voltage dual 50uF capacitor. Filters treble, midrange and low frequency above 290Hz 2. The anti-interference 0.22uF capacitor filters self-excitation and howling in the audio 3. Inductance length is close to 8cm, inductance is 4.8mH, using 1.57mm high temperature resistant enameled wire 4. Designed for a gain of 12dB, capable of handling approximately 1500W power 5. Upper limit frequency range is approximately 260Hz to 290Hz Features: 1. High current switch adjustable around 30Hz, providing strong inductance bass response 2. Uses PCB fireproof board with thick copper base and enhanced tin plating for smooth current flow 3. Solder-free gold-plated terminals offer a premium look, easy connectivity, fine craftsmanship, and improved performance 4. Anti-vibration foot pads provide stable installation Model: WEAH-89 Power: 1500W Applicable Impedance: 4-8 Ohms Upper Limit Frequency: 290Hz Dimensions: 117 x 95 x 56mm Material: PCB Color: As shown Package Contents: 1 x Bass Crossover Note: Light reflection and differences in display screens may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 1-3cm.