Please make sure that there are no obstacles in the way from the studio monitors to your ears. You should be able to see the speakers completely. For the security of your speakers as well as for acoustic reasons, it is important that they sit firmly on a solid surface.
The acoustic centre of your monitor, which is usually just below the tweeter, should be pointing at your ears. In case you need to position the speakers in a significantly lower or higher position, the studio monitors should be angled accordingly. A standard value for the height of the listener’s ears is 1,20 m above ground.
If the studio monitors are going to be used for stereo applications, the optimum listening position is at the top of an imaginary equilateral triangle with the two speakers to be placed at the other two points of this triangle. The speakers should be aligned with the listener’s position.
Speaker positioning for multi-channel purposes is ideally based on a circle with speakers placed at 0° (Center), 30° (Front Right), 110° (Rear Right), 250° (rear Left), 330° (Front Left), with the listener being the circle’s centre (5.1 surround setup). This ITU-recommended configuration may vary depending on the purpose of the control room (music or film). However, it is highly recommended to create a symmetrical listening position with the front side and surround speakers pointing at the listener’s ears.