I didn't even know there were new models! I figure you're talking about these: http://www.head-fi.org/t/698831/fresh-outta-ces-the-hifiman-he-400i-and-he-560 Getting a chance to try those babies out would be awesome indeed.
I agree with pp312 that the DT880's soundstage is adequately wide such that wide recordings with a lot of positional queues sound very natural and don't sound at all closed-in while more intimate recordings are not artificially widened.
The K712 definitely has a wider stage but the difference isn't as large as I was lead to believe it would be based on what people said. And the problem with the wider stage is that its no deeper so it almost sounds artificial.
Not sometimes, most of the time. ;) That's one of the first realizations I had when I got my first pair of "good headphones" (HD600)-- just how imperfect recordings are. Distortion, clipping, buzzing, crackles, its all there, in virtually every recording ever, to one extent or another.
You make a good point but it can be confusing for some people, mostly because they have a desire to believe that the 600 ohm version is objectively "best". Beyer didn't release different impedance versions of the DT770/880/990 so that there would be some that were superior to others, they did it so customers could buy the one that matches what they are powering them with. Nothing more, nothing less. They are designed to perform 100% identically in every other way. That's...
The soundstage difference between the Premium and Pro is negligible and shouldn't be a determining factor. I wouldn't be surprised if a majority of listeners heard zero difference between them in that regard. The tighter clamping force of the Pro results in slightly better sub-bass impact but other than that they are the same headphone.
Probably not. You'd have to ask Sennheiser but I doubt they are an authorized dealer. Some sites are authorized in their country but not authorized to sell to the US so the US warranty is void. Either way I'd say chances are slim.
Wow man. I'm going to leave the photo in this quote because it deserves two posts. ;) Congrats! My good friend has a very similar Rick (possibly the exact same year too) but its not 12-string and it has the darker finish. You've got a helluva beautiful guitar there! Me too! Except I still have mine! :) I bought a 4003 with the money I made in my first job at age 15. They were only $1k back then (about 1997). Mine has the same Mapleglo finish as Magick Man's...
That's a good sign as it implies that there's probably not a very large amount of standard driver variance in the Amperior which is always a good thing! Mine also sounded great out of the box and haven't changed other than my getting used to them.