This page explains the difference between a PA system and a sound system.
There is probably no clear definition for either a PA system or a sound system. Therefore, on this page, they are categorized as follows. Although this is not a generally accepted classification, this site provides explanations based on the classification below.
There is probably no clear definition for either a PA system or a sound system. Therefore, on this page, they are categorized as follows. Although this is not a generally accepted classification, this site provides explanations based on the classification below.
Microphone (MIC) and Speaker (SP) location
PA system
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Sound system
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For PA systems, the MIC and SP are in separate rooms. Although there is no need to worry about feedback, it is difficult for the person making the announcement to confirm how their voice is being broadcast.
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In the case of a sound system, the MIC and SP are in the same room. System designers must of course be concerned about feedback. Also, the speech person must speak while listening to his or her own voice being amplified. In some cases this is difficult.
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Reason for dividing the output
In the case of a PA system, the sound (output) is divided to broadcast different content to different rooms.
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In the case of a sound system, the sound (output) is divided so that the high range is sent to the high range SP and the low range is sent to the low range SP. From the user's point of view, there is no reason to separate the sounds, but it is necessary to separate them due to SP constraints.
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Of course, there are exceptions, and there may be cases where a system that incorporates elements of both is required, but these are the main factors that make the difference between the two.
