Yes, this is of great interest to me as well. I own the Quad tube amp and a Violectric V281 and I the headphones I've had definitely prefer one or the other. Any comments on weight/comfort compared to the Clears? I see they're just a bit lighter than the Clears, not enough to make a difference I'm guessing. The Focal's have such a good headband and distribute the weight so evenly I find them very comfortable despite being 450 grams.