Axiom Home Page Forums General Discussion Technical Questions Big ugly room resonances

Yep... all you can really do is draw out all of the possible opposing walls where standing waves can build up (including angles and corners if you're bored) and work out the frequencies for all of them.

The most common thing, though, is not so much "measure the room to predict the behavior" but "measure the frequency response then look at the bad spots, convert those frequencies into distances, and go figure out what you can re-arrange to attack the problem".

In my case I think I committed the crime of having many speakers roughly the same distance from a wall. Not 100% sure but after I shuffled distances and moved the surrounds to the right (on the pic above) away from the opposing walls things got a lot better.