"I love surround sound, and have made my self expert in it. I play my video games with four speakers, two in front and two behind. They connect to my sound blaster live and I can tell where anyone in the game is located if they make a sound. Well at night, as not to wake anyone, I used headphones, but I sucked when I didn't have that edge that surround sound gave me. So I decided to make a pair of headphones that could duplicate the effect of four speakers." This is WAY beyond my skills, but if you enjoy messing with audio equipment and want the joy of building your own surround sound headphones check this article out.