Bass waves are super long and they do some crazy things. The waves come back on themselves and can cancel each other. I am just beginning to study all this on the internet and using software to analyze the room so I know ( hopefully ) what is happening to better address the situation. I am using an antimode in my bedroom and it works darn good. Since you are using towers without subs your only option is bass traps. Keep us posted as you progress.

Richard

DOG is GOD spelled backwards.
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