PYLE PPCX-3 3-WAY Stereo Crossover with Subwoofer Output Designed for Biamped and Triamped Systems - 2 Independent Channels - Seperate Subwoofer Channel - State of the Art Crossover Technology - Precise Frequency Control for Multi-Amplified Applications Low-Mid and Mid-High Crossover Frequency Controls - Phase Inversion Switches on Mid &amp; High - 30Hz Low Cut Filter Switches on Low and Subwoofer - Low, Mid, High and Subwoofer Output Level Controls Signal Summing for Subwoofer Output - Balanced XLR Inputs and Outputs - Single Rack Space Unit - Low-Mid: 70-1000Hz Mid-High: 480-7000Hz - Subwoofer: 50-250Hz - Frequency Response: 25Hz-25KHz +/-1dB Variable Linkwitz Riley 12dB/Octave Filters - 110/220 Voltage Switchable - Dimensions: 19''(W) x 7.7''(D) x 1.7''(H)