A combined audio connector integrates both a balanced XLR (External Line Return) and an unbalanced phone jack, typically a 1/4″ or 3.5mm TRS (Tip, Ring, Sleeve), into a single unit. This configuration allows for connection of various audio sources and devices using either professional-grade balanced cables or consumer-grade unbalanced cables. For example, a microphone with an XLR output or a guitar with a standard instrument cable can be plugged into the same input.
This integration streamlines audio setups by reducing the number of input jacks needed on a device, saving space and offering greater flexibility in connectivity. Historically, separate XLR and phone jacks were standard on audio equipment, requiring more panel space and potentially increasing the complexity of wiring. The combination enhances user convenience and reduces the potential for cable clutter, particularly in environments where space is limited or where a variety of audio sources are employed. This design fosters more efficient use of available resources and facilitates simpler connections.