How can i make sound feels like in front of you by using Audio System in Unity Engine?

Question about Sound system in UnityEngine. We have managed to simulated the sound feels like behind ,in front ,surround you bey using reverb and EQ in studio. How should i use unity to reach the same? There are different speaker mode in AudioManager setting e.g. Stereo Surround etc. So i presume Unity have full 3D sound support. But i didn't manage to achieve the target.