The acoustic characteristics of sound equipment should not only meet the requirements of national standards for acoustic characteristic indicators, but also meet the requirements of subjective listening, because acoustic characteristic indicators cannot fully reflect the actual sound effect. The quality of sound is ultimately determined by the subjective listening sensation of people. In acoustic design, electrical and architectural design should be well coordinated to meet the following subjective listening requirements: appropriate loudness. Loudness is the actual feeling of listening intensity, which is directly related to the maximum sound pressure level indicator of the sound reinforcement system. For the performance, only by reaching sufficient loudness can the sound effect be fully demonstrated. The output power of the system and the placement of the speaker will directly determine the loudness status of the listening area: high definition.

When used as a speech, language clarity must be ensured. If people cannot hear the speaker's language clearly, it will affect the effectiveness of the speech. Therefore, in the design of electroacoustic systems, it is necessary to fully consider improving language clarity: sufficient fullness.

A performance with good fullness can make the vocals full and rich, and the music is melodious and lively. In the electroacoustic system, only by using sound peripheral equipment to effectively process sound signals and selecting speakers reasonably can the fullness of the sound meet the requirements. The computer-aided design of acoustic characteristics of sound reinforcement systems is an ideal method for engineering design using modern technological means, with high accuracy and efficiency. More importantly, the engineering design results can be known without waiting for installation and debugging to complete. The computer design system for acoustic characteristics has excellent reliability and accuracy. When the input acoustic data of the hall is sufficiently accurate, the calculated data can be compared with the final electroacoustic measurement results, and the error can be controlled within decibels. For engineering design and installation debugging, this is sufficient, and it also has good guidance for design, installation, and debugging, which has been well verified in previous engineering designs. The use of an acoustic CAD computer system to design and calculate the acoustic characteristics of the sound reinforcement system for halls, gymnasiums (fields), multifunctional halls, and lecture halls means that the design and installation debugging results can be known without waiting for the system installation, debugging, and measurement to be completed. In other words, based on the audio system and design calculation results provided in this design scheme, the expected acoustic characteristics of the sound reinforcement system of the system have been clearly seen.