Well, I think the honeymoon with the HD800 is over and I immdediately demad a divorce. I got sick of listening to music for nearly a week, and I think the fling with the HD800 had a lot to do with it. I tried them last night after appreciating the T50 orthos and I thought I was cool with listening to headphones again after enjoying the T50s so much, when I put on the HD800 - it felt lick ice picks going into my ears, the treble reminded me of why I didn't want to listen to cans for nearly a week. Recently the HD800 were the sole headphones I listened to and benchmarked everything against.
I then put the K701 on straight afterwards, and it felt like a relief from the metalic glare of the HD800, it produces less bass than the HD800, but the top end is rolled off compared to the HD800. It was actually quite soothing to the ears compared to the HD800 and does not produce the high frequency metallic sheen. I guess I was only delaying the inevitable conclusion by listening to the HD800s at lower volume - it just took longer to fatigue.
Its funny because these were exactly the same conclusions I made earlier in the year when I first auditioned the HD800 and compared them directly to the K701 at the store. Only I was smarter back then to turm the volume up to realistic performance levels and arrived to the same conclusion in less than 15 minutes, ie the HD800s serve as an icepick through my head. There is no place in my collection for the HD800 unfortunately, not if they make listening to my headphones a sickening thought. The K701 stays.