Audio interfaces connect sources to amplifiers through analog, optical, Bluetooth, or networked audio connections, then pass the signal through the amplifier to connected speakers. Depending on the system, they can use Ethernet or Wi-Fi, route audio over Dante or AES67 networks, and integrate with control systems for configuration, voice control, or automated source and room control.

Compare audio interfaces by the connections your system requires, including wired Ethernet and Wi-Fi for network access, analog and optical outputs for local audio equipment, and Dante or AES67 for networked audio distribution. Also consider whether the interface supports audio casting from mobile devices, connections to amplifiers or displays, and separate audio and control networks.

Audio interfaces can route music from mobile devices, networked sources, or smart displays to amplifiers in separate rooms or zones through wired Ethernet, Wi-Fi, Dante, or AES67 networks. Installers can use an interface for each amplifier zone, then group compatible zones for synchronized playback while maintaining a scalable signal path from the source to the speakers.

When integrating an audio interface into a residential or commercial AV system, confirm the interface matches the system’s signal path, such as analog, optical, eARC, Dante, or AES67, and plan for the required amplifier, speakers, network connections, and control equipment. Provide suitable Ethernet or Wi-Fi connectivity, allow access for configuration and service, and account for multiroom zones, signal routing, and sources such as mobile devices, smart displays, or AV-over-IP encoders.