32 Channel Mic/Line In Dante/AES67 Interface, 1RU. The Attero Tech by QSC Synapse D32Mi a high-performance, high-channel density networked audio interface supporting Dante™ with AES67 interoperability. It features 32 studio-grade mic/line preamps and is designed to address the needs of a wide range of commercial audio connectivity applications. It also offers quick access to gain, mute and phantom power controls along with front panel headphone access for local input and Dante™ confidence monitoring.