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　　broadcasting equipment normal operating temperature should be generally 18 ℃ ~ 45 ℃. Temperature is ...

　　In practice, the frequency range of the frequency response of the sound has been a major concern, ho...

　　Sound system human operator error "Technology people-oriented", that is not bad, no matter how good,...

　　Mentioned sound systems, of course, we first think of the mixer, the mixer, there are multiple metho...