Barrel - Audio ConnectorsBarrel audio connectors are connectors that are used with barrel audio cables to connect audio devices, such as speakers or microphones, to other audio equipment. Barrel audio connectors are typically cylindrical in shape and have a hollow center, which allows them to be easily inserted onto the ends of barrel audio cables. These connectors may have a variety of different pin configurations, depending on the type and number of signals that they are designed to carry, and may include additional features such as strain relief or grounding clips. Barrel audio connectors are commonly used in a variety of audio applications, and are available in a range of sizes and styles to suit different needs.