I already had two and I wanted another. These powered speakers sound great and are very powerful. I learned if you turn the volume on the speaker way up you get alot of hiss... Turned the speaker volume to about eleven o clock, increased my volume at the sound board, the hiss was almost all gone. The only way to hear the hiss now is if the room is totally quiet, and you are about 4ft away or less, and then it is very slight.