Which of the following are capabilities provided by Extron matrix switchers?

Extron matrix switchers are designed to manage multiple audio and video sources, allowing users to route the appropriate signals to various displays or output devices. One of the key functions of these switchers is source selection, which enables users to choose which source is being output to a specific display at any given time. This capability is fundamental in environments where multiple input sources are in use, such as classrooms or conference rooms.

In addition to simple source selection, Extron matrix switchers can provide audio mixing capabilities. This allows for various audio signals to be combined and processed, ensuring that the resulting output matches the needs of the presentation or event. Audio mixing is particularly valuable in professional AV environments where audio quality and synchronization are critical.

Remote access is also a capability that many Extron matrix switchers offer. This feature allows users to control the switcher from a distance, enabling adjustments to source selections, audio levels, and configurations without physical interaction. Remote access enhances flexibility and ease of use in managing AV systems.

Therefore, the correct response highlights that Extron matrix switchers encompass both source selection and audio mixing capabilities, along with the option for remote access, collectively making them a versatile solution for various AV applications.