How does a PA system work?

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Tags

1. #provide
2. #volume
3. #which
4. #assist
5. #begin
6. #systems
7. #address
8. #microphones
9. #usually
10. #system
11. #dynamic
12. #communication
13. #condensers
14. #source
15. #device
16. #public
17. #magnifying
18. #group
19. #transmit
20. #transmission
21. #audio
22. #microphone