1. Adjustable Low and High Frequencies: With a capacitor in series and parallel, respectively, this speaker crossover allows you to adjust the low and high frequencies to your preferences. The capacitor also limits the level of ultra-low frequency that can pass through. 2. Smooth and Clean Sound: This speaker crossover includes an additional capacitor that enhances the smoothness of the low-frequency response. As a result, it is Perfect for reproducing natural vocal and string sounds without any dullness. You'll love its clean, crisp sound quality when used in small rooms like bedrooms, offices, or tea rooms. 3. Versatile Adjustable Switches: Unlike conventional crossovers, this one features adjustable switches for both high and low frequencies. It allows you to adjust the crossover point to suit your specific needs, making it Perfect for a wide range of speakers. 4. This is a high-low two-way divider designed for bookshelf boxes. The crossover point is above 200Hz. Bookshelf boxes