WIRED:

For most of the demo, we were running between 5 and 10 watts of power into the LS Concerts — all that’s required to drive the speakers this light and fast. Even at that level, they were loud. Like, really loud. We were pushing roughly 120 decibels out of the LS Concerts, and the sound was absolutely glorious.Tim reluctantly turned it down a few notches when a candle came tumbling off the fireplace mantle.

Holy crap. I’d never pay that kind of money for “just” a set of speakers but I’d really like to hear what they sound like in that kind of environment.