So I recently hooked my new Panny XR57 up to my Nanosat system and have discovered a terrible echo. At first, I thought it might just be the "brightness" of the XR57. However, it's beyond that. If you put your ear right next to the speakers, the echo is terrible. It's most evident during dialogue. Addiitonally, if I enter Game mode, the echo is reduced significantly. Is there a setting I'm missing that's causing this?