Movie theater multi channel audio system Movie theater multi channel audio system Support any audio input with rca connector or other customization connector Audio input interface Our multi-audio systems provide 8 x high stereo audio connections from external audio sources such as fm radio and cd players.Mp3 player, dvd and so on Connectors: rca/others Audio format: stereo Audio level: 1-3v rms Input impedance: 10k ohms L sub devices power up on channel ‘1’ and with a default 12 level volume setting. L passenger can adjust the volume by press the key L passenger can choose the languages/channels by press the key L the headphone sockets are replaceable when it damaged by passenger L plug usb cable into a usb port on the hub to get power supply and signal connection This system is very popular for cinema, school bus, any area need to play audio in 8 stereo channels Movie theater multi channel audio system