Posted over in the HD800 SuperBAF thread, decided to put it over here to not clutter up that thread. Edit: I'm noticing piano in more of my songs, even songs where I didn't realize there was really a piano in them before. Not sure if it's just confirmation bias, or something along the lines of the Baader-Meinhof phenomena, but this is pretty neato so far. Fine details (smacking of lips, reverb of strings, etc) are preserved. Soundstage is mostly the same, but does feel a little bit smaller. For $20 worth of carpet liner (and man, do I have a lot of spare carpet liner now)... The results are pretty addictive. I don't have any headphones to do a direct comparison to, but it's straightforward enough to do that I'd really enjoy reading other people's impressions.