Rane AC 22B Active Crossover Employs 4th-order Linkwitz-Riley filter alignments to eliminate phase problems Features adjustable time delay circuits on the low (and mid when used three-way) outputs to compensate for physical misalignment of drivers Mono subwoofer switch provides the option to sum both low outputs in stereo two-way mode XLR connectors with active balanced inputs and outputs It employs state-variable 4th-order Linkwitz-Riley filter alignments to minimize phase difficulties in the critical crossover region AC 22 & AC 22B Active Crossovers The Rane AC 22 and AC 22B Active Crossovers are configurable as Stereo 2-Way or Mono 3-Way They employ state-variable 4th-order Linkwitz-Riley filter alignments to minimize phase difficulties in the critical crossover region Two models are available with different connectors