You'll get extra width and height channels to accompany the non-stop action.
Whether 'The Expendables 2' is a movie that you were already going to put in your collection or not, the Blu-ray release is big news for home theater lovers. The Stallone/Statham/Schwarzenegger packed film will be the first to come to homes with DTS Neo:X sound.
DTS Neo:X takes the normal 7.1 channel setup and adds an extra four, designed to give you not only height but added width. The end result is more immersive, all-encompassing sound.
Not a fan of action movies? 'Step Up Revolution' is the next title sporting Neo:X and it comes out the week after.
Source: Big Picture Big Sound