Mark, I figured you had consulted the experts. I did not mean to offend. Just trying to help by sending you towards someone who has the science to actually analyze the situation.
Perhaps you could test your subwoofer in another room, or even outside on a Finnish basketball court or something. Just to see if you can confirm your suspicions about either the sub or the room. I am always impressed by the analysis provided by you, JohnK and Bridgman about the room nodes, and I can be convinced that your small, square room is the culprit.
I still like either knocking out a wall or trying that IB thing. Or maybe constructing a special Home Theatre Shirt with some bass-shakers on the chest area. Perhaps one of those portable defibrillators plugged into the LFE port?
How much is return shipping on a EP500?
