Check the listing for details. Behringer Super-X Pro Crossover Stereo 2-Way/Mono 3-Way with Sub Output CX2310. Condition: Open box. Listed at 107.15 USD. new open box. The Behringer Super-X Pro Crossover Stereo 2-Way/Mono 3-Way with Sub Output CX2310 is a professional-grade audio device designed for musicians and audio engineers. This rack-mountable unit offers versatile sound processing capabilities with its stereo 2-way and mono 3-way crossover features. The CX2310 allows for analog signal processing, making it a reliable choice for those seeking high-quality sound results. With its compact 1U rack unit height, this crossover is easy to integrate into existing sound setups, making it a valuable addition to any audio production environment.