Thanks for the response Cal. I have checked all the speaker connections. I am running a 7.1 system. During normal TV viewing or netflix on the XBOX or PS3 my KG's are loud and clear. While watching blu rays via my PS3 with any of the hd audio formats the center doesn't sound as loud and clear. I constantly find myself in the settings menu on the onkyo raising the db level. This only occurs while watching 5.1, 6.1, and ,7.1 encoded blu rays. The XBOX & PS3 are attached to the onkyo by HDMI.