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I'm getting scratching/static in my Polk 3000 Soundbar when I switch my input from cable mode to HDMI (which is what my blue ray player is connected with to the TV). I don't hear the scratching noise when I use the older RCA cables to hook up the blue-ray player, though.

I'm pretty sure its the audio settings that need to be adjusted through the Blue Ray player but not sure what those need to be at as both the soundbar and blue ray player are new to us.

We have the Sony BDPS390 and the Polk 3000 Soundbar and just want them to play nicely together.