crossover dbx 224XL + SUBWOOFERSpefikasions:XLR balanced ins and outsMode switches for mono 4-way or stereo 2-way/3-way operationLow frequency summed (subwoofer) outputx10 range switch on both channels40Hz high pass (low cut) filter both channelsPhase reverse switch on all outputsIndividual level controls on all outputs24dB per octave Linkwitz-Riley filters (the professional standard)Stereo/Mono status LEDs indicate the selected modedbx 2 year parts and labor as standardCSA NRTL/C approvedCE compliant