actually i heard them at a concert with live band and several vocals at moderately loud volume ...there were stacks of 4 hanging on each side of the room which was a 'mid size auditorium', and they sounded pretty clean.... the question was asked whether anyone heard them and what their personal opinion is ....having mixed for some of the top rock,rnb, andjazz groups, i think my opinion should count for something , and im not endorsing them ,so it doesn't matter to me whether someone buys it or not[does nothing for my wallet]!!!!! thanks