FYI, I have not but I could listen in good conditions. Here's my analysis: in sound I was pleasantly surprised by the performance and quality of the medium. The voices are beautiful. A little too dominant for my taste. After using an equa to calm 1kHz, slightly increase the brightness to 10 khz and give a little fishing in the 40 / 50 Hz the result is interresting. The opening is large enough so no problem to cover a dance floor. In the result the price does not seem too high. As against two black dots (outside of the robustness on what I can not speak): the weight (60 kg approx) you have to forget yourself and height. Indeed it must be via a config RAISED scene to cover as large if the speakers are on the ground, the sound is muffled by the dancers. These two points of elevation and weight requirement made me abandon the purchase. Indeed there is not always scene. damage.