in Perfect condition, barely used. Inputs: Two XLR balanced/unbalanced inputs; two TRS balanced/unbalanced inputs; two unbalanced RCA inputs Outputs: Two XLR balanced/unbalanced outputs for satellites; two TRS balanced/unbalanced outputs for satellites Controls: - Volume/gain control - Phase inverse switch for a seamless system frequency response, regardless of the subwoofer’s location in the studio - Variable 50-200 Hz crossover control to blend perfectly with L/R monitors of all sizes - Subwoofer bypass footswitch