前级蓝牙功放低音¥97.20去看看滕达商贸发布了蓝牙数字功放板模块XYT50H 2路50W双声道 带前级高低音喇叭调节AdjustableBluetoothcompatbleXYT50H¥135.30去看看TB198 Flagship store发布了XYT50H Adjustable Bluetooth-compatble Dgtal Power AmplfAdjustablecompatibleBluetoothAmplifi¥135.30去看看JLaiZ Flagship store发布了XYT50H Adjustable Bluetooth-compatible Digital Power Amplifi