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连接和控制
注意:做任何连接之前,请务必把低音炮电源线从墙壁交流电插座上
拔掉。
“ LINE IN(线路输入)”连接:如今,大多数环绕声接收器(和前
置放大器)配有专门用于连接低音炮的线路电平输出,该输出端标
有:Subwoofer Pre Out, Sub Out, SW Out等字样。若接收器配有这
样的输出端,则低音炮电缆的一端应连接到接收器上的该输出端,另一
端应连接到低音炮上标有LEFT/LFE字样的低音炮线路输入端。这样,
低音炮可以播放音乐和电影环绕声(请参阅您的接收器设备说明书)。
若接收器上没有低音炮输出端,但有左、右声道前置放大器输出端,则
您可以将该前置放大器输出端连接到低音炮上的LEFT/ LFE输入端。
“LEVEL”控制 :若要把低音炮连接到环绕声接收器上的重低音输出
端,则请首先把接收器上的低音炮音量控制装置调到“一半”或“0
dB”位置,然后增加低音炮音量(或增益),直到低音炮的音量能匹
配主音箱的输出音量。设置完成后,音响系统的主放大器音量控制装置
或前置放大器音量控制装置可用来同时控制低音炮和其它音箱的音量。
若把低音炮连接到接收器上的左/右前置放大器输出端,或通过高电平
连线连接到接收器上的扬声器端子,那么在调整低音炮上的音量控制之
前,无法在接收器上调整低音炮音量。
“LOWPASS”控制 :选择分频点,是为了决定低于多高频率的低音
信号将“移交”给低音炮播放。若要在接收器上设置该分频点,则请
把低音炮上的低通滤波器旋钮向右旋到尽头 (160赫兹)。请根据音响系
统中使用的左/右主音箱的尺寸大小来设定分频点。作为一般规则,对
于较大的落地式音箱,请把分频点设置为50- 90赫兹。若使用小的“
书架”系列音箱或“卫星”系列音箱作为主音箱,则把分频点设定为
90-150赫兹。音箱越小,则分频点频率应越高。整个音响系统连接妥
当之后,请调整分频点直到低音炮和其它音箱实现完美的低音融合。若
接收器上没有分频点设定装置,则您可以按照我们推荐的上述方式设
定低音炮上的低通滤波器(请参见接收器说明书,了解音箱的更多设
置信息)。
“PHASE” 0/180度:该控制装置用来在声学上把低音炮的输出与主
音箱的输出相互匹配。请选择0度或180度相位,看选择哪个相位能在
聆听位置获得更多的低音炮输出。
“电源 (POWER)” AUTO/ON/OFF (自动/开启/关闭):该开关设
到“ON”位置时,低音炮将始终打开。设到“AUTO”位置时,低音炮
将 在感应到信号时自动“打开”。如果没有信号,它将在 15
-20 分钟内自动转入“待机模式”。设 到“OFF”位置时,低音炮
将始终“关闭”,直到该 开关被手动调回至“ON”或“AUTO”位置。
电源LED指示灯:该指示灯位于前挡板,用于指示内置功放的工作状
态。该指示灯呈现绿色时,说明放大器处于正在接收信号的工作状态。
若指示灯不亮,则说明放大器处于关闭状态。有关本手册所述控制设置
和低音管理方面的更多信息,请联系经销商或访问 www.klipsch.com
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