Mine is the same way. I have the Satellite/Cable input Source Level on my Denon turned up to like +6 while the other inputs are 0 or -3 or so. The input was around 0 when I had cable plugged into the same input, same HDMI cable. Do you find the Pandora "app" on the directv receiver is a "normal" volume, and must be turned down by half or normal Directv receiver operation when using Pandora?