Rolls MA2152 70V, 100W per Channel Mixer/Amplifier Two Microphone inputs with phantom power. - Tone controls for each Mic input. Three stereo Source inputs - Bass and Treble controls on Sources One and Two - Priority ducking on Mic One and Source Three Stereo pre-master level Record Output - Fault protected power amp Amp will drive 25 or 70 volt lines directly FR4 Double-sided epoxy circuit board - Socketed ICs