PG-AUDIO devices transport analog audio and data signals that can be customized to fit user needs. PG16-AUDIO devices have four different rear types that enable the conversion of signals: 16 inputs, 16 outputs, 8 inputs, 8 outputs and 8 dual microphone inputs with two independent adjustable gains. PG8-AUDIO devices have three different rear types that enable the conversion of signals: 8 microphone inputs, 8 line inputs or 8 line outputs. FX devices can add and/or extract up to 1024 audio channels from the ProGrid network and 64 audio channels to/from the SANE network. A single TP device can exchange up to 64 audio channels from the SANE network and two AES/EBU ports, each capable of 16 channels.