IEC 60268-21

IEC 60268-21 is a standard that outlines methods for measuring how loudspeakers respond to electrical signals, specifically focusing on directivity and frequency response. It ensures consistent testing procedures so manufacturers and engineers can accurately evaluate how a speaker performs in terms of sound dispersion and tonal quality. This helps in designing and assessing speakers for sound uniformity and clarity, especially in settings like concert halls, audio systems, and public address setups. Overall, IEC 60268-21 provides a standardized framework to ensure reliable, comparable speaker performance measurements.