Professional stereo 2-way/3-way/mono 4-way crossover featuring state-of-the-art Linkwitz-Riley filters with 24 dB/octave Individual Limiters on each output for optimal loudspeaker protection Adjustable time delay for phase alignment between drivers CD horn equalization for constant directivity horn compensation Absolutely flat summed amplitude response, zero phase difference “Low Sum” function provides mono output for subwoofer operation Individual output Gain controls for all bands Individual output Mute switches for easy band adjustment Individual Phase reverse switches for instant phase correction Switchable 25 Hz Low cut filter on each input for low-frequency driver protection Servo-balanced and gold-plated XLR connectors for all inputs and outputs Ultra-high precision potentiometers for ultimate accuracy and repeatability Illuminated switches for secure operation in dark stage environments Internal switch-mode power supply (100 - 240 V~) for noise-free audio and low power consumption 3-Year Warranty Program*