How do these compare to HD598s? I'm looking for a closed back headphone for around this price that sound similar ie wide soundstage and no harsh highs etc. I realize these obviously aren't as good as 598s but I'm just trying to get an idea. Also my ears barely fit into the 598 earcups. Will my big ears fit in these? The perfect fit for me earcup wise are turtle beach x11s so theres an idea of my ear size.