Thanks! That's exactly what the problem was. I finally got around to updating to the latest firmware (1.3) a couple weeks back and, sure enough, I just checked and the dynamic compression is set to ON. I set it to off and watched the last 15 minutes of Transformers just now and it sounded great. Not only is the high end (glass shattering, etc) back, but there the extreme low end was there too, putting my Velodyne F1500 sub to good use.