A device used to determine the appropriate wire thickness for connecting audio amplifiers to loudspeakers. This determination considers the power output of the amplifier, the impedance of the speakers, and the length of the cable run. The tool often presents its results as an American Wire Gauge (AWG) number; lower AWG numbers denote thicker wires.
Selection of the proper wire size is crucial for optimal audio system performance. Using wire that is too thin can lead to signal degradation, power loss, and potential overheating, reducing audio fidelity and potentially damaging equipment. Using excessively thick wire offers diminishing returns in terms of performance but can increase cost and handling difficulty. Originally, these assessments were performed manually using tables and formulas. The advent of online tools has simplified the process, offering quick and reliable recommendations based on user-entered parameters.