Well i googled your receiver and it has no HDMI, no optical, so I can only assume you have it connect from the headphone 3.5mm jack on the android box to RCA jacks on the receiver. In that case you get no surround, there is no way to pass it. Your receiver should have a way to enable it's "simulated dolby surround" with a button on the remote, but that's up to you to use. IT's an old, old, old receiver. You would need a newer AVR, audio-video receiver that has HDMI or optical on it.