忘记这个低音炮，当它被连接时。因为当低音炮接收到一个输入信号时，它将自动接通低通；而在20分钟没有信号时它将被设置为待机状态。
 

Continuously variable level, phase and cut-off frequency controls make it easy to tune the subwoofer to integrate with virtually any speaker on the market, as well as allowing different placements and personal preferences