Distance is also objective. If one hears a voice distant, than everybody else does, too (when ruling out the variables: fit, eartips etc.). You can test this distance by comparing to a naturally tuned earphone you know very well. My benchmark is the UE900S. Interpretation/opinion would be to find the distant voices "awesome" or not. Several head fiers have reported the voices as distant in the ZS10. Unless there is a technical problem, this is real. You certainly will not get anybody reporting forward voices. P.S. I am aware that mids comprises more than voices.