40 Watt Audio Amp for 70V or 100V Systems with RS-232 ControlTwo stereo analog audio inputs and one digital audio input, selectable by buttons, IR remote, or RS-232MIC port supports balanced or unbalanced signalsMIC input supports 48V phantom power, dynamic MIC and wireless MICAmplified output is switchable between 70V and 100VMono audio output at 40 wattsSupports “Ducking” function