Crossover Advantages and Features: 1. Audio-specific anti-interference high-power, high-current, high-voltage double 50uF large capacitor. Filters treble, midrange, and low frequency above 290Hz. 2. The anti-interference 0.22uF capacitor reduces self-excitation and audio howling. 3. Inductance length is close to 8cm, inductance value is 4.8mH, using 1.57mm high-temperature enameled wire. 4. Designed for a gain of 12dB, capable of handling up to approximately 1500W power. 5. Upper limit frequency range is approximately 260Hz to 290Hz. Features: 1. High-current switch adjustable around 30Hz, enabling strong bass performance. 2. Utilizes a fireproof PCB board with a thick copper base and reinforced tin plating for smooth high-current transmission. 3. Gold-plated solder terminals provide a premium look, ease of use, fine craftsmanship, and improved connectivity. 4. Anti-vibration foot pads ensure stable installation. Model: -89 Power: 1500W Applicable Impedance: 48 Ohms Upper Limit Frequency: 290Hz Dimensions: 117 x 95 x 56mm Material: PCB Color: Package Contents: 1 x Bass Crossover