I got the pro 1's , which I think the main difference between them is that 2's have blutooth. In saying that, I really dig my matrix mini pro. I drive my DT990 (now sold), 7xx and 6xx with ease. With a balance presentation. I felt that the dt990 brightness were tammed down ever so slightly compared to my av receiver. My harmony remote also speaks to them as well. A company that I trust in Australia actually recommended these as a product of choice for the price. They are sturdy, heavier than I thought. I am not sure how they drive high high end headphones as I haven't got any, but these will make your midfi phones sing.