Yikes that is small... Gonna be some very intricate testing.. Start with them about 1" Toed in, for example the back corner of the speaker lets say is 11" from the sidewall, make the front corners 12"... If this is fairly 3 dimensional but not strong in the center of the room example the voice does not sound like it is coming from a center channel in the middle of the room which you don't have but should sound like you do, then move them only a Quarter inch more toe in at a time, you could try straight ahead at first and go a 1/4" inch each time untill they snap into place.. I did this for about 2 months with mine and finally the speakers dissapeard like nothing sounds like it is physically coming from them, things just materialize in mid air, but this could be very dependent on listening position and room treatment as well.. but you can at least experiment with toe'ing for free. There is no way to give anyone a perfect answer on this, its all trial and error with every speaker depending on the Room it is in, don't accept a lesser answer, your speaker manufacture really has nothing to do with the Toe'ing aspect as much as positions of them in a given environment.