Audio signal distribution unit, 1 in 20, especially intended for press conferences. Will work with line or microphone signal. Maximum available gain is over 60dB. Active driver circuit for each pair of outputs, nominal level for XLR is +4dBu, -10dBu for RCA and jack sockets. All inputs and outputs are transformer balanced. Units can be stacked to receive more outputs. Mains powered or by external 24VDC supply. Stereo version on request.