Origin and Meaning
The term “XLR” doesn’t stand for anything specific today, though it has historical roots tied to the connector’s design. Originally developed by Cannon Electric, the connector was first called the “Cannon X” series. Later versions with a Latch and Rubber compound were labeled as “XL” and “XLR” respectively. This design evolution was aimed at improving the durability and connection reliability of the cables.
If you want to learn more about the benefits of using XLR connections, have a look there: Benefits of XLR Connections.