BEHRINGER SUPER-X PRO CX2310 CROSSOVER, The Berhringer CX2310 was developed as an answer to numerous requests for a professional but easy-to-use crossover. Like the CX3400, it offers absolute precision, state-of-the-art circuitry, professional components such as ALPS potentiometers and illuminated controls, ultra low-noise op amps, fully balanced inputs and outputs and perfectly intuitive operation. In addition to full-fledged 2-way stereo/3-way mono operation, the CX2310 features a separately adjustable subwoofer output, giving you an extra low-frequency band. Features include 24 dB/octave, state-variable Linkwitz-Riley filters for precise frequency separation, absolutely flat summed amplitude response, zero phase difference, individual output level and mute for each band, Phase reverse switch for each output, switchable 25 Hz subsonic filter on each input for low-frequency driver protection and a "Sum" function provides low-level mono output for subwoofer operation.