I've heard speakers that sound very good right up against or very close to the rear wall. But I've yet to find a way to put speakers directly up against a wall without losing something in regards to sound stage depth, if not imaging. Rear ported speakers generally lose the most against a wall I would say compared to other designs.
I have several pair of speakers in my system. The front ported Ohm Ls are the ones that shine best against the walls, but they inherently do not image or soundstage as well as the others regardless.
My Dynaudios lose much of their luster against a wall.
My small Triangles benefit in the low end but at the cost of soundstage and imaging, though not as much as the Dynaudios.
My Ohm Walsh line speakers work very well against a wall, but also still lose something significant in the imaging/soundstage department.
Of course, corner horns, like Klipschorns, are designed to go into the corners, but these are a different breed of speaker for sure!
I have several pair of speakers in my system. The front ported Ohm Ls are the ones that shine best against the walls, but they inherently do not image or soundstage as well as the others regardless.
My Dynaudios lose much of their luster against a wall.
My small Triangles benefit in the low end but at the cost of soundstage and imaging, though not as much as the Dynaudios.
My Ohm Walsh line speakers work very well against a wall, but also still lose something significant in the imaging/soundstage department.
Of course, corner horns, like Klipschorns, are designed to go into the corners, but these are a different breed of speaker for sure!