Hans Wetzel has posted a review of the JL Audio Dominion d108 subwoofer ($799) at SoundStage! Access. His conclusions:
“JL Audio’s Dominion d108 is a truly musical subwoofer with enough refinement and control to keep up with a top-flight minimonitor, and is ballsy enough to provide robust output down to 30Hz.”
You can read the full review here.