建筑群间布线问题...

<p>背景音乐如何布线：</p><p>几幢办公楼每幢间隔300多米，之间弱电管道是波纹管连接地埋900MM,现在背景音乐用光端机好还是用电缆线好用多少平方线好呢，每幢楼喇叭3W，80只左右。</p>

<p>我想光端机的费用肯定高了吧。</p><p>应该选用电缆。具体用多大的请咨询一下做广播的兄弟。</p>

<p>用音频线连接楼宇之间，每幢楼单独加功放</p>

<p>用数字广播系统比较好。</p>

<p>使用RVS2*1.5或者2.0</p>

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<p>采用电缆，看功放功率，和最后的衰耗要求。800米没有3W没有必要用光端机</p>

看衰减