I had the same thing on the mesh of my hd700...same kind of material. I carefully rubbed it off with my finger and it went away. I think it's just some oily residue maybe from the manufacturing process?
From what I've gathered they are using some kind of space age NASA material that measures in the nano-meters for the diaphragm, that is supposed to give it superb clarity and openness to the sound. I'm sure the magnets have been upgraded as well.Edit: and a dash of hype.
Speaking of tubes, has anyone had the chance to try the ridiculously expensive 6n30p-dr in the Sonett 2? The few impressions I have been able to find online are pretty hyperbolic...and this was a few years ago when they were $100 each instead of $250 each
Jesus you guys are paranoid. The sign up is right there on the front page of Jet.com.
And as a correction I read the article on IGN.com, I'm pretty sure a site that big wouldn't report on a pyramid scheme.
But yeah nobody is forcing anyone to sign up, so like...don't if you don't want to.
If you guys haven't heard of Jet.com yet it's worth checking into. It's kind of like an online Sam's club or Cosco and they say all their prices will be 7-10% less than the lowest prices of Amazon. I don't know yet if they will offer headphones/audio equipment, but if you sign up in the next 20 days you get a free 6 month membership. Otherwise I believe it is $50 a year.
Worth a shot...here's the 6 month sign up link: