![Smile :)](./images/smilies/icon_smile.gif)
That's the first floor of my townhouse. It's a HW floor supported by joists, and the basement is underneath. The pic is not exactly to scale, but close enough.
I have a Conrad Johnson pre, an old B&K power amp, and B&W speakers:
http://www.hifi-review.com/151906-b-w-dm605-s2.html
I have a good amount of low end from this system, which is audible everywhere in the space, including areas: X1-4, and Z1&2
When I move into the area depicted by Y1&2, the low end all but disappears. I think this is considered a null?
The Q is why does this decrease in low end happen in that area? Not that I am looking to do anything to fix it; I am not, as there is no need. I am simply curious about the science behind what is going on here.
Thanks in advance.