PA 스피커와 Hi-Fi 스피커의 차이
Keep in mind that PA speakers are made for producing sound; HiFi speaker are made for reproducing sound. Stated another way, PA is made for producing original content, and any flaws or coloration they add merely become a part of that original content. HiFi, on the other hand, is made for reproducing what was originally heard as accurately and fully as possible.
출처: AV forums