I currently have the Stax SR-507, SR-L700 and Sennheiser HD800S in my ownership, so I thought people may be interested in my overall impressions/comparisons between the three. Bit of background, the HD800S and SR-507 I've had for a bit and the SR-L700 joined the stable a little over a week ago...

I own both the HD 598 and the HD 600. Build wise, they are both largely plastic headphones, but both feel very sturdy and well made. With care, they would both last a long time. Comfort wise, they HD 600 clamps tighter out of the box. I have a slightly larger than average head, so I found it a...