Guys:
How exactly are you determining the dips/peaks of the spectrum vs the room size?? I know the formula for wavelenght, but I dont picture when a room dimension will cause a dip or a peak in the spectrum.
And why the 560...? is not the speed of sound in air around 1135ft/s (at 74degf, ie). I understand the physics, but I never use them before in acoustics. So I guess that the half-wavelenght and full-wavelenght dimensions have to do, but which one cause dips, and which one cause peaks?? It its a silly question I guess.
As soon as my preamp arrive, I will make the same spectra analisys in diferent positions, to help myself to place the sub (my room dimensions are 14x20x8, not 14x20x10 as I post wrongly before). The best place so far is just in the middle of the room, but if I walk behind it, towards the TV, man it sounds not good.
Thanks.
