Gads. I guess I have to say '2 is the only one I can even see relating here.It depends on what your point of reference is.
1 From the speakers' point of view, it's the rear wall.
2 From the listener's, it's the front wall.
Also depends on your speakers. 3 From my speakers' point of view, it's just the baffle.

Some speaker placements refer to side walls!When talking about speaker position, it simply is "the wall". You recommend this and that distance from the wall, and done. Context makes it overly clear what wall that is. No need to complicate your speech.
Some speaker placements refer to side walls!
These are the walls either side of the speakers, not the ones beside the listener, so it is logical to call the wall behind the sperakers the rear wall.
OK, we've cracked it, thanks to side walls!![]()
If the back wall is in front, then the left wall is on the right and the right wall is on the left?we've cracked it, thanks to side walls!![]()
If the back wall is in front, then the left wall is on the right and the right wall is on the left?
The north side of my town faced east
And the east was facing south
I consider the rear wall to be behind me where my rear speakers are hanging.
The Who: