My thoughts on soundstage probably won't be too popular here but in general soundstage (and specifically distance and locatedness) doesn't actually exist in stereo headphones. It's instead more of a spaciousness effect conferred by the relationship between the upper mids and treble - specifically the dip around 1-2khz. I'd say for that quality the Tungsten is fairly normal, in a good way. It has a bit of that effect, similar to the hifiman headphones, but it's also not as extreme for this as say the HD 800S.