Analog Interconnects

Analog Interconnects Analog interconnects, also known as RCA cables, transfer Left and Right stereo signals from components, such as CD players, turntables, and other devices to a stereo or surround sound amplifier or receiver. Red is designated for the Right Channel and White is designated for the Left Channel.
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An RCA connector, sometimes called a phono connector or (in other languages) Cinch connector, is a type of electrical connector commonly used to carry audio and video signals. The name RCA derives from the Radio Corporation of America, which introduced the design by the early 1940s for internal connection of the pickup to the chassis in home radio-phonograph consoles. It was originally a low-cost, simple design, intended only for mating and disconnection when servicing the console. Refinement came with later designs, although they remained compatible.

RCA connectors began to replace the older quarter-inch phone connectors for many other applications in the consumer audio world when component high-fidelity systems started becoming popular in the 1950s. However, quarter-inch phone connectors are still common in professional audio, while miniature phone connectors (3.5 mm) predominated in personal stereo systems.