Quote:
Originally Posted by DanDan  'no particle displacement, no energy'
DD |
That's what room modes are about. Excite an empty room at a modal frequency, and you'll find places that have no energy. Of course, this is very simplified, because of reflections, air movement (thermal and otherwise), etc. And we are talking about a tiny piece of the sound wave, not the wave as a whole.
So you want to place your bass trap as close to the max as possible. But that won't really work below 100Hz, that's why I use membrane resonators for low bass absorption.
Of course, you could put your trap in the middle of the room, but then it kind of gets in the way of other wavelengths, not to mention clients.