Which connector is used for carrying audio signals specifically for headphones?

The 1/4" Phone Plug is widely recognized as a connector specifically designed for transporting audio signals for headphones. It is commonly used in various audio applications, particularly in professional settings such as music studios and live sound environments. The size of the connector allows for a sturdy connection, ensuring that audio signals are transmitted with minimal interference and high fidelity.

The design of the 1/4" Phone Plug accommodates both mono and stereo applications, making it suitable for a range of headphone types. When used with stereo headphones, the 1/4" connector typically includes two conductors plus a ground, enabling the left and right audio channels to be sent clearly. This versatility makes it a preferred choice for connecting headphones to amplifiers, mixing boards, and other audio equipment.

Other connectors mentioned, such as XLR cables, RCA cables, and BNC cables, have different primary uses. XLR cables are primarily used for balanced audio connections in professional settings, RCA cables are commonly used for consumer audio and video connections, and BNC cables are typically associated with video signal transmission. Each of these connectors serves a specific function and is not tailored for headphone audio signal transfers in the same way the 1/4" Phone Plug is.