Thanks. Canceled my order after seeing this. I have B&W P7, Senn Momentum, V-Moda M100, AKG K550 for closed headphones. I don't use them much and I doubt I would get use out of these if they are close to K550 and Momentums. Although a great deal, I will probably not use it at all. Too hot in California to wear them out, and got too many hifi open back headphones to use indoors.