This three-way crossover audio board (bass, midrange, and tweeter) utilizes the NE5532P operational amplifier chip and is designed for home audio or DIY amplifier systems, enabling precise bass, midrange, and treble control. This professional-grade crossover helps you fine-tune the sound, achieving clearer vocals, deeper bass, and smoother treble. Three-way crossover design: Independent bass, midrange, and tweeter channels achieve precise frequency distribution and balanced sound quality. High-quality NE5532P chip: Employs the NE5532P low-noise operational amplifier to enhance audio clarity and reduce distortion across the entire frequency range. Crossover filter: Built-in active filter circuitry separates low, mid, and high frequencies, improving detail, separation, and stereo imaging. Suitable for amplifier system integration: Ideal for upgrading existing amplifier systems, DIY amplifiers, and home theater systems, meeting your needs for more precise tone control. Enhanced Bass Performance: A dedicated bass path optimizes low-frequency response, delivering a more powerful bass impact in music, movies, and games. Clear Mids and Highs: Improved vocal clarity and high-frequency detail make instruments and vocals sound more natural and transparent. DIY Audio Friendly: Suitable for audio enthusiasts and DIY audiophiles, allowing them to build custom equalizers or preamplifier modules for stereo or multi-channel systems. Stable PCB Layout: A carefully designed circuit board layout ensures low noise, good channel separation, and reliable long-term operation. Color: Green Material: PCB+Metal Package Contents: 1 * audio board 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.