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Thanks. I am on the fence. I am considering purchasing either the Beyerdynamic DT770 Pro (80 ohm) or the new Beyerdynamic Custom One (16 ohm). The new Beyers would not even require a headphone amp, and I know the DT770 will need one, but the 80 ohm model should be fine with even the DGX amp.
As most of my music is in MP3 format (from Amazon) I doubt they have many encoded at 192 Khz. I predominately will use the card for gaming over music. So I am really curious if the Essence or TiHD offer any advantages in virtualization. I understand EAX is emulated in Windows 7, so not sure if the TiHD offers any advantage there?
It still does, for the games that use it. Let me clarify a few things:
-The new Vista/Windows 7/Windows 8 sound stack removed DirectSound3D support. Most older games that used EAX did so through DS3D. It is NOT emulated in any way; your DS3D games are reduced to stereo, maybe even mono, with no reverb/chorus/occlusion/etc. effects.
-OpenAL remains unaffected. This is why ALchemy, DS3DGX, 3DSoundBack, etc. can even work in the first place: they wrap the old DS3D calls to OAL, thus restoring hardware sound acceleration and EAX. Obviously, you don't need to use it on games that are OpenAL-native to begin with (Battlefield 2 being a great example).
-Only the X-Fi DSP handles EAX 3/4/5 natively due to Creative refusing to license them out like they did with EAX 1/2.
-Asus claims to emulate the higher versions with DS3DGX, but I remain unsure how well it holds up to the real deal in terms of compatibility and quality.
-For that matter, Creative's own software OpenAL renderer that claims to support up to EAX 5, used with the X-Fi MB(2) software packages, USB "X-Fi" devices, Recon3D cards, and probably their upcoming Z-series cards too, has issues that even the hardware X-Fi OpenAL renderer doesn't. Not just EAX 5, but even basic EAX 1/2-era games.
-EAX aside, the way DirectSound3D and OpenAL work allows CMSS-3D Headphone to create a proper 3D binaural mix. Dolby Headphone is incapable of leveraging this extra positional data, instead downmixing it to 5.1/7.1 before it does its work. Needless to say, this gives CMSS-3D Headphone a substantial imaging advantage. Kind of like having an aural wallhack, as I say all the time.
For gaming, I'd still advise going with the X-Fi Titanium HD, if you can afford it...unless you really want that FiiO E9-class amp on the Essence STX and you only play games that use XAudio2 + X3DAudio and FMOD Ex (for which the X-Fi DSP brings no benefit because it's not being used by the game engine).