Just a small excerpt from the below review:

"This is a beautifully-made headphone with sound that for most users will be thrilling, in a word. I have a recording of a 16 hz organ pedal from the Kellogg Auditorium, which not only plays with serious impact on the Vento, but the 16-cycle analog "beats" are clearly audible. That kind of deep-bass detail is rare for most larger headphones, but unheard of (small pun) in this class."

http://www.hifiheadphones.co.uk/comm...e-review.4458/