I used the sleep timer on the Freedom last night. I set it to shut down the unit when it expired. It worked like a charm.
Something's going on though that I need to investigate. It was playing Clapton Unplugged and it sounded as good as the Force. This time I had the Freedom plugged into AC. All other times I had it on battery. Maybe it doesn't sound as good on battery? I need to follow up on that theory today.
BTW, it was placed on a tall chest of drawers close to a corner and it didn't boom or make any other funny noises even when turned it up.