I experienced back to front reversal out in the real world 2 weekends ago, (not through a sound system). At a car show the vehicles were put on a dyno in a building with an enormous freight door left open. I was off-axis to the ramp door many yards to the right. When the cars were run up to full revs, I knew that the car was behind me and to my left, yet the sound appeared to be coming distinctly from the front, with distance moved also to approximately a block north.

I knew the walls of buildings in the vicinity were reflecting the sound, but the effect was so pronounced several people commented on it. Very interesting to hear this location jump when you know where the sound originates but your ears are placing the source in a different location.