AES67 is a protocol for transmitting audio over a computer network. Unlike its contemporaries (Q-Lan, Dante, etc), AES67 is an open standard and is thus implemented in many products.
Q-Sys offers the ability to use both Dante and/or AES67 to receive and transmit audio. However, AES67 does not require a license, which can make it appealing in many scenarios.
Q: Does AES67 support redundancy?
A: Unlike Q-LAN and Dante, AES67 does not support redundant topologies.
Q: How do I transmit AES67 from a Dante device?
A: Please see this article: MXW - MXA910 enabling AES67 : Technical Application Group (freshdesk.com). Start at step 4.
Q: How do I transmit AES67 from Q-Sys to a Dante device?
A: Most modern dante devices require the AES67 transmitter to have a multicast address in the range of 239.69.xxx.yyy. See this article from QSC: Troubleshooting | AES67 from Core to Dante BKII devices won't connect - Q-SYS (qsys.com)
Q: Why can't I discover AES67 streams?
A: Most AES67 streams announce themselves over the network via Multicast (session announcement protocol). If you are having issues discovering streams, it is overwhelmingly likely that your network is not properly configured for multicast.
Q: Can you use AES67 to transmit audio between Q-Sys cores?
A: Absolutely. This may be a preferrable option to Q-Lan because unlike Q-Lan, you can transmit audio between cores on different firmware versions.