XLR3

XLR3 refers primarily to the three-pin variant of the XLR family of circular electrical connectors. XLR connectors are widely used in professional audio and stage equipment and are designed to carry balanced audio signals with robust shielding and a locking mating mechanism. The designation “3” indicates the number of conductors, and XLR3 connectors are available in male (XLR3M) and female (XLR3F) versions. They feature a durable metal shell, a latch-like coupling to resist accidental disconnection, and standardized pin layouts to ensure compatibility across equipment and cabling.

In typical usage, XLR3 cables are employed for microphone and line-level connections, where balanced signaling helps reduce noise over long cable runs. The connectors are favored for reliability in live sound and studio environments, easy field termination, and wide availability of cables, adapters, and accessories. Termination for XLR3 cables can be done via solder or crimp methods, and assemblies are common in stage snakes, patch bays, and audio interfaces.

While the XLR3 is the most common interpretation of the term, XLR3 can appear in catalog numbers or product lines that reference three-pin XLR components. The broader XLR family includes variants with more pins (such as 4, 5, or more) for DMX lighting and other signaling applications, but XLR3 remains the standard three-pin configuration for many microphone and line connections.

See also: XLR connector, balanced audio, microphone cable, Neutrik, Cannon Electric.