Donny, I've NEVER had any problems with hum from these speakers. The only minor drawback is the hiss, but only noticeable up close in a dead quiet room.

The BIG plus with the EV SxA100's is that they're egonomicly shaped and have a fairly balanced weight distribution, making them easy to manage. I find transporting the EVs easier than some much lighter (yet awkardly shaped boxy PA speakers. Remember, it's NOT just the weight alone that counts.