Yup, diagonal placement in a squareish room often works quite well.
You might also try 15 or 20 degrees - in other words, asymmetry. In some cases this is a net improvement; the bass may end up smoother, and the ear generally likes for the reflections arriving at each ear to be somewhat dissimilar (according to Floyd Toole's book).
Duke
dealer/manufacturer/occasional dabbler in semi-diagonal geometries
You might also try 15 or 20 degrees - in other words, asymmetry. In some cases this is a net improvement; the bass may end up smoother, and the ear generally likes for the reflections arriving at each ear to be somewhat dissimilar (according to Floyd Toole's book).
Duke
dealer/manufacturer/occasional dabbler in semi-diagonal geometries