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PA擴大機聲音輸出不平衡

Oct 1st 2013, 19:18

想請教一下
我目前使用的是
鐘王牌400W的PA擴大機
主要都是做人聲主持活動
因應場合大小不同
有時會用到4歐姆做四顆100W音頭並聯輸出
有時則會以8歐姆並聯兩顆100W音頭

以下想請教的是
1.四顆音頭輸出時
因為線材不足
導致必須可能要混用一兩條
不同價格的線材(大概是一公尺15元及20元的差異)
請問這樣會嚴重影響到音量的不平衡嗎

倘若是一樣的線材
一樣100W的音頭
而線長分別是20公尺及40公尺長
兩邊音頭的音量
會因此不平衡嗎?

2.倘若線材長度相等
音頭瓦數也相同
但還是發生兩邊聲音
一邊大一邊小的情況
想請教有可能是擴大機什麼地方故障了嗎

希望版上有大師可以為小弟解惑
先在這說聲感謝了!!!

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