Simple Explanation

A single-prong connector shaped like a banana used to easily plug speaker wires into amplifiers or receivers.

Concise Technical Definition

A type of single-conductor electrical connector with a 4 mm banana-shaped spring-metal tip designed for use with binding posts in audio systems, especially for speaker and amplifier terminals.

Layman-Friendly Analogy

Like a headphone jack, but for speaker wires—it clicks in easily and ensures a solid connection without needing to screw or clamp wires.

Industry Usage Summary

Commonly used in home audio and professional speaker setups to simplify and secure speaker wire connections to amplifiers and receivers, often in high-power or quick-installation environments.

Engineering Shortcut

Banana Plug = 4 mm spring tip for quick-connect speaker wiring.

Full Technical Explanation

A banana plug is a cylindrical single-conductor connector, typically 4 mm in diameter, with a spring-loaded metal pin that maintains firm contact when inserted into a matching binding post. Used primarily for speaker wire terminations, it simplifies audio system wiring, reduces the risk of stray wire strands causing shorts, and supports high current transfer. Though not standardized globally, the design is widespread in hi-fi and pro-audio applications due to its reliability and ease of use.