This feature of Mac computers will pleasantly surprise you
Desktop operating system Apple contains many useful features, and despite the fact that many have few years of their existence know of one. For example, standard operating system, you can configure the sound output simultaneously on several sources and obtain a sort of multiroom.
To do this, the system has a built-in application Audio MIDI Setup. Open it by using the Spotlight search — it will be the fastest.
After that, click on plus and create a device with multiple outputs. In my case, for example, the sound will be output to standard 3.5 mm Jack, and the speakers of the monitor connected via HDMI.
The device can be any — DAC and USB to connect and “make” something in the AirPlay also works with multiple Bluetooth headsets. A function is actually very useful, and if you do not know about its existence, you can begin to use it.