The DAC24 is a multi-functional product. Its basic function is the conversion of AES/EBU digital audio to analog audio. In addition to the analog outputs it has AES/EBU outputs and offers the Synapse ADD-ON function. In ADD-ON mode the card acts as an input board that is fed by a master card that is positioned one slot left of the ADD-ON card. The DAC24 for example acts as an analog and digital audio de-embedder when used in combination with the AXON SAV12 or SFS12 (more options available see below). The AES/EBU in- and outputs are available on 75 Ohms BNC or 110 Ohms screw terminals and sub-D. This selection is determined by the type of connector panel. The BPL02 has 75 Ohms AES/EBU in- and outputs. The user has control over channel selection/swapping, and gain and phase control of all 4 audio channels.