When you want to get the most out of your sound system, you need the right tools to make it happen. ART's CX311 crossover is perfect for live sound installations. This high-quality, ultra-dependable crossover employs 24dB/octave state-variable, fourth order, Linwitz-Riley filters for in-phase outputs at all frequencies. The stereo 2-way CX311 offers a subwoofer output and a 30-cycle low-cut switch, to optimize your live PA setup. Maximize what your system can do for you, with the CX311 crossover.