MXQ Pro av audio problem

[T Clarke]

Hi I connect my device to a stereo player using rca cables, when the sound is turned up slightly there is a crackling/hiss sound in the background. On connection to tv with hdmi everything's o.k. My question...is this a known issue with this device (S905W)? Obliged for any help

 

[B. Diddy]

I moved this to the Android TV forum for more specific traffic.