Unlike gaming trinkets K702 is open design (which is better starting point for sound quality) so I guess you have quiet environment and no external noises to isolate?
Anyway if goal is accurate, neutral bass sound with maximum details, you can't go wrong with K702.
They're pretty much that "aural god mode/wall hack" with proper binaural sound.
Next step up would be game showing locations of sound sources in on screen map.
Which would be actually slower than just doing it the natural way, aka listening.
And they're certainly light in weight, with not much of bulk in head band structure to add weight.
Though if you have smaller especially downward narrowing head shape, that "automatic" adjustment might not hold cups positioned well.
Again if you want more above neutral bass punchiness, there would be other open headphones for same £100 price, like Beyerdynamic DT990 Pro.
(of course at expense of step lower details)
Head Related Transfer Functions for binaural sound simulation aren't anything new and MSI advertises that Nahimic software.
There just aren't any proper gameplay samples with that available...
With all examples in Youtube but there by Nahimic being total trash for any kind comparison.
In fact almost got nausea from listening their samples with that constant on off switching of god knows what processing!
Didn't even know that was possible...
Sound card is lot more reliable for getting binaural sound simulation and not tied to motherboard choise.
If wanting external/USB sound card one thing to consider would be, if you have also consoles.
Sound BlasterX G6 has also Dolby Digital decoding for full functionality with them.
Older Sound BlasterX G5 which can be found for that £100 works only as stereo device with them.
Not as good headphone output wouldn't be problem if K702.
(G6 uses basically same headphone output as
internal SBX AE-5)
Of course if your head shape differs more from average, then immersion of average head shape using HRTF suffers.
Creative has now head shape customizable HRTF algorithm, which they call as Super X-Fi.
It's just not sure if/when Creative brings that algorithm to sound cards, or at least to better priced ones.
(maybe we'll know more after CES)
