When the 4pi's I heard in Merrillville were originally listened to (before I got there), several people suggested that maybe the crossover was hooked up wrong. Kevin said he had checked the crossover 3 times, I think, and I trust his building talents enough to believe that it was correct. Since I listened to them in the same room, in the same position, and using the same system as the HE10.1's, I felt qualified to give my opinion on the sound of each. If I hadn't heard them in a setup like this, I wouldn't have bothered.

John