Originally posted by NEO:
I'm getting a screeching sub distortion sound when trying play the dynamic sub peaks.
Can you be more descriptive than "screeching"? That's not usually a description you associate with a subwoofer.
Also, to hear the dialog better, have you thought about turning up your center channel only? Almost all dialog in a modern movie is in the center channel so pushing that up may help you hear dialog without completely affecting your front soundstage.
Sorry I can't help more...