![]() ![]() ![]() Appendices supporting the text give guidelines for making proper free-field measurements, sizing of baffles for low-frequency driver measurements, a method for producing the specified noise signal used in power testing, and a summary of required information. For all components, specifications are given for describing necessary physical and mechanical characteristics, such as hardware, mounting data, size, and weight. For horns and enclosures, specifications are given for describing directional characteristics and additional pertinent performance data. For drivers, specifications are given for describing frequency response, impedance, distortion, and power handling. These components include high-frequency drivers, high-and mid-frequency horns, low-frequency drivers, and low-frequency enclosures. This document is a recommended practice for describing and specifying loudspeaker components used in professional audio and sound-reinforcement systems. ![]()
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