Yes as in directly between where two surfaces that will probably reflect these sounds will have the same pressure and result in a distruction of the virtual image (audible reflection) caused by these frequencies to become much greater in strength, or cancel becoming much lesser in strength. The same is for the walls. If they are equidistant from two walls we have the same result, and the virtual image and frequencies result in distortion. This is called SBIR, and can minimized using diffusive surfaces (typical room already has them) and absorption (panels or other area with damping) where the energy is used up, transmitted to another area, or reflected back in different ways, and/or controlled by speaker placement, sometimes with equalization. Our speakers interact with room modes, a result of acoustical interference off a surface that is inside a room, which change and alter the way they would sound without being in the room, these can be examined by doing measurements, or closely predicted using a room mode calculator. I find that a room mode calculator helps.
The general rule I believe is place it higher than the middle of the room, or lower, while ear level being best for the front 3 speakers, and no further than 2 feet higher or lower than each other.