An Introduction to the XLR Connector

The origin of the XLR connector was the Cannon X series connector for fitting the demands of the audio connections.

This connector soon became the industry’s standard and nearly every manufacturer copied the Cannon connector.

Today the 3pin XLR is the most commonly known for connecting audio equipment and sometimes sub-woofers and is also the standard connector for AES/EBU connections (electronically balanced, impedance 110 ohms).

Today further XLR’s have been developed with more pins for special purposes.

	XLR Plug Male
	XLR Plug Female

Also see XLR Connector - Pinout Wiring Diagram.