I'm always surprised by what you can hear through a good set of stereo speakers. On Heart's "Very best of" album there is a live recording of Mistral Wind where you can clearly hear a wind noise moving around in two dimensions above the speakers (if you have good speakers). On my M60s the movement seems to be about half the speaker separation wide (maybe 4 feet) and perhaps 2-3 feet vertically.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8