The XR Series crossovers all feature 24 dB per octave filters, infinitely variable crossover frequency and response, as well as both 1/4" TRS phone jacks and XLR connectors for all inputs and outputs. A peak overload indicator monitors all critical points in the circuit to ensure low-distortion operation. A recessed switch on the front panel with an LED indicator allows for either Normal or Divide by Ten frequency selection. The XR-1001 is a stereo two-way or mono three-way crossover. Dimensions: XR1001: 19"W x 1.75"H x 6"D