I'm wondering how much better does it get than the HD800. I love my HD800 for jazz which is my main genre of music. So how does the SR-009 do for jazz? Is the SR-009 worth $5000 compared to HD800 for $1500? The SR-009 is a lot of money for a headphone, but I'm willing to pay the price if it gives me the ultimate jazz headphone in the world. Is there anybody that has made the jump from HD800 to SR-0009 and was it worth the price of admission? Thanks in advance.