I recently bought a set of Tritton Warhead (Halo 4 edition) as I wanted to give a fully wireless set up a try. My expectations were not high, but I was pleasantly surprised at how well I was able to hear directionally, especially front/back. I really didn't expect to say this, but I think the Warhead has better directional and positioning sound than the Astro mixamp + AKG K702 headphone setup that I have been using for several years now.
Huh? That's the response I have been having too. In trying to figure out why, the only reason I can come up with is that there must be something to the 7.1 processing of the Warhead. Before now, I have always dismissed the advantage of 7.1 since the Xbox only puts out a 5.1 signal. The best I can tell, the Warhead creates 7.1 simulated surround by first pre-processing the Dolby Digital 5.1 signal using Dolby Pro Logic IIx to come up with a 7.1 signal. This 7.1 signal is then processed using Dolby Headphone.
In contrast, my Astro Mixamp (not the latest 2013 edition) utilizes Dolby Headphone on the DD 5.1 signal (without PLIIx pre-processing to create 7.1). I wonder if the Warhead's use of the PLIIx pre-processing adds some more emphasis to the rear channels. Whatever it is, it seems to work very well.
The latest 2013 Astro Mixamp claims 7.1 - I wonder if it incorporates PLIIx processing as well. Has anyone upgraded from an older Mixamp and noticed an improvement in directional/positioning sound?