32 Channel Line Out Dante/AES67 Interface, 1RU. The Attero Tech by QSC Synapse D32o is a high-performance networked audio interface supporting Dante™ with AES67 interoperability. It features 32 balanced line level outputs with digitally controlled attenuation from 0 to -100 dB. All outputs are available independently for routing from the Dante / AES67 network audio interfaces.