Paul,
You mentioned in an earlier post that you had the 500 adjusted to the 11:30 position. I assume this means "noon" when you are looking at the sub from the top.
Try this. Set the 500 to "full" and dial down the volume to 8 or 9 o'clock (referenced from the back of the sub; 2 or 3 o'clock looking down from the top). Leave your cross-over at 80Hz. Large or small for your fronts is your choice. And make sure you have properly set the distances for all the speakers in the receiver. How does that sound now?
