Since installing the REV10s on our boat I have walked a ways back to hear them but, not any big distance. Over the weekend we were at the lake, I had my wife drop me near the shore and drive away from me, the video was shot with a Flip Mino Video Camera, thought is was cool the way it turned out and was worth sharing. On a side note the dog HATES these speakers, I think my ear drums do as well. When watching turn up the volume to a decent level and leave it, might be a little loud in the beginning of the video. Enjoy!