Well what does Dark in this High_End context mean.. let me explain. A dark Vio sounds black in the sense that everything is highly resolving, transparent and very neutral, but it is liquid in a sense that it is -never- harsh. Trebles is there but never harsh. It is something like comparing a Yamaha to other pianos. Japanse tonality. The Vio stack scales my headphones up, but you clearly hear that a homogenous LCD-2 or the already excellently reveiling my Beyer 51p are not up to the capabilities of the Vio stack. The TH-900 scaled nicely, but its extremely V-Shaped nature was nothing I would consider High-End even in the remotest sense. Still, i have no idea how the Cavalli sounds like.