ART CX311 2-Way Crossover With Subwoofer OutputThe 311 crossover from ART may be used as a stereo 2 way crossover network and has the addition of the subwoofer output for low end frequency reinforcement. It employs 24dB octave state variable, Fourth order Linkwitz Riley filters that guarantee properly phased outputs at all frequencies. Each channel features independent high and low output level controls and a crossover frequency rotary control which covers a wide range of 250Hz to 6kHz. All three