speaker功放,speaker音响

surroundspeakers应该是环绕音箱的输出口,是接有源音箱还是无源的呢
应该是电脑的声卡的line out/speaker 用3.
二手原装美国进口 kvspeakertwo n550 发烧舞台后级 大功率功放
av-2301 5.1 digital av amplifier high power 300w wood speaker
samsung-speaker-2.jpg