WARNING: about to talk out my but here. super don't know what im talking about...
something curious… I looked up 30hz wave length. and its about 1/4 wave is about 9.5ft. which is the height of my ceiling. I thught I would try and elevate my subs, I don't have anthing to put them on. Iv seen where people stack them. now the 30 hz is gone. I just have two more. is that what is happening or did i get lucky.
the orange is the new readings.