You might do a bit of research in the archives on AA. These issues have been discussed often and thoroughly.
The short answer is properly setting up Quads is difficult. One of the major requirements, because of the back wave of the speaker, is that it needs to be about 5' from the wall behind it and the wall should have some diffusive materiels to break up the backwave. In my own room I compromised at 4.5 ft but really broke up the back wave/wall interface. The distance of 5 ft is due to the need to seperate the initial signal from the signal bouncing off the back wall. You do get a break in that the speakers can be situated close to the side walls. You should also plan on having tou listening chair triangulated with the speakers equaldistance from them as they are from each other, perhaps a tad more.
If all you can do is 2ft from the back wall I'd stay away from bipolar or omni speaker. Hell, I have a hard time recommending that for simple front firing speakers but at least you can get something decent using them in a less than optimum set up.
The short answer is properly setting up Quads is difficult. One of the major requirements, because of the back wave of the speaker, is that it needs to be about 5' from the wall behind it and the wall should have some diffusive materiels to break up the backwave. In my own room I compromised at 4.5 ft but really broke up the back wave/wall interface. The distance of 5 ft is due to the need to seperate the initial signal from the signal bouncing off the back wall. You do get a break in that the speakers can be situated close to the side walls. You should also plan on having tou listening chair triangulated with the speakers equaldistance from them as they are from each other, perhaps a tad more.
If all you can do is 2ft from the back wall I'd stay away from bipolar or omni speaker. Hell, I have a hard time recommending that for simple front firing speakers but at least you can get something decent using them in a less than optimum set up.