I was wondering what the hdmi through means, all of my components are hooked up with hdmi cables. I tried looking this up online and all I see is hdmi pass through. meaning I guess you have to use a separate audio cable to get sound. mine just says hdmi through and i do get sound through hdmi cables. I was wondering if anybody could shed some light on this for me. also the reciever I'am using is a onkyo tx-sr805