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放置重低音喇叭
重低音喇叭的效能與其在聆聽房間內的放置以及其與系統中其他喇叭的相對物理位置直
接相關。
雖然通常人耳在重低音喇叭工作的低頻率下的確聽不到定向聲音,但是,當在房間的有
限範圍內安裝重低音喇叭時,房間內產生的反射、駐波以及吸收會嚴重影響重低音喇叭
系統的效能。因此,重低音喇叭在房間內的特定位置對產生的低音量和低音品質變得至
關重要。
例如,將重低音喇叭靠牆放置通常會增加房間內的低音量;而將其放在角落 (1) 通常會
使房間內低音量達到最大。但是,角落放置還會增強駐波對低音效能的破壞性影響。此
影響視聆聽位置而異。在一定頻率下,某些聆聽位置可能產生極好的效果;而其他聆聽
位置可能產生太多(太少)低音。
在許多房間中,沿左和右喇叭 (2) 的同一平面放置重低音喇叭可讓重低音喇叭的聲音與
左和右喇叭的聲音達到最佳的融合。在某些房間中,將重低音喇叭放在聆聽位置 (3)
面甚至可產生最佳的效能。
強烈建議您先將重低音喇叭放在不同位置進行試聽,然後再選定最終位置。要確定重低
音喇叭的最佳位置,一種方式是暫時將其放在聆聽位置並以低音強勁的內容播放音樂。
在系統播放時將重低音喇叭移動到不同位置(將耳朵靠近放置重低音喇叭的位置),聆
聽直至找到具備最佳效能的位置。將重低音喇叭放在該位置。
連接重低音喇叭
至帶有低通濾波專有重低音喇叭輸出端 (LFE) 的接收器或前置放大器/處理器
至接收器或前置放大器/帶前置放大器輸出的處理器
左前方音箱 中置音箱 右前方音箱
左環繞聲音箱 右環繞聲音箱
重低音喇叭輸入
接收器/處理器
接收器/處理器
重低音喇叭 LFE
輸出
附註:此重低音喇叭/LFE 纜線不隨附,但可向電子零售
商購買。
使用此類連接時,確保將重低音喇叭上的分頻控制鈕
順時針旋轉到底。此類設定會繞過重低音喇叭的內部
分頻並使用接收器或處理器的分頻設定。
檢查接收器或處理器的功能表設定,並將重低音喇叭
選取項設定到「On」(開啟)或「Yes」(是)。
請確保檢閱接收器或處理器的擁有者手冊,以瞭解喇
叭設定和組態的更多資訊。
重低音喇叭輸入
前置放大器
輸出
附註:此特殊的重低音喇叭/LFE 纜線不隨附,但可向電子
零售商購買。RCA Y 適配器纜線還用於進行此類連接。
建議對中號喇叭將重低音喇叭的分頻設定設為
80Hz;對較小號(衛星式)喇叭將此設定設為較高
值;而對較大號的落地式喇叭將此設定設為較低值。
113


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