Originally Posted by Sierra419
If I went with an external amp/ dac would I still get simulated surround sound audio like Dolby Headphone?
No. Most external DAC/AMPs or stacks do NOT use simulated surround. To get that, you would need something along the lines of the Astro Mixamp (The MLE guide lists several). A regular headphone dac/amp would just clean and improve the digital to analog conversion and amplify the signal.
Lately in the MLE guide, he is moving toward headphones that are harder to drive (AKG Anniversary and HE400 and up), so they are adding an amp to the chain (after the device that simulates surround sound). However! The light at the end of your tunnel is that you are using a PC, and not a console. So, you can get a good sound card that simulates surround sound, AND has a built in headphone amp, and you'd be set. You wouldn't then have to worry about external Dacs and Amps, or stacks. You may peruse Nameless' sound card guide to find what would be best for you.
Edited by MidnightSolace - 3/6/13 at 11:09am
Let me beg you. Please please PLEASE, do NOT get the A40 headset. At least not the 2013 (as this is the one with which I have experience). The Audio Technica ATH AD700 is SO MUCH BETTER (than the A40 2013). I made a mistake in getting the A40, after I already used a mixamp and AD700. It was a bad call. (I wanted a mic! Modmic orders always seemed to keep having problems and the Zalman clip on I had was horrid.)