40 Watts of output power2 Inputs on Model CC4021:1 balanced MIC/Line;1 unbalanced AUXIndividual phantom power forMIC inputsVolume controls for each inputInput 1 can mute other inputsAudio-activated mutingDefeatable mutingBass and treble controlsCompatible with 70V, 25V, 4-ohm,and 8-ohm systemsREC OutputPeak indicatorSignal indicatorExternal 24V DC supply inputListed to UL Standard 60065for US and CanadaOptional rack mount adapter available for single and side-by-side configurations (sold separately)