help! my pre-amp have hum noise
:cry: my classe c-101 pre-amp have hum noise, when i turn the main volume to 12:00 to 14:00 position, the hum noise comes much less, why??? what is the problem??? how to fix it??? please help! Classe喎！！！！去service centre啦，唔好玩啦，大佬！
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