Just some thoughts.
It seems like the HF2 may have a difficult time living up to the expectations set by the HF1. HF1's are renowned for being great "bang for the buck", a steal at the original $199, and even comparable to higher end reference series Grados.
From reading jude's impressions, I get the picture of them being HF1's with just slightly more detail but at over twice the cost.
|If you loved the HF1's punchy bass response, you'll love the HF2's punchy bass response, only you'll find it more detailed.
If you loved the HF1's midrange--which, to me, was the thing about it most Reference-Series-like--you'll love the HF2's midrange, because it's as rich, but, again, with a smidge more detail there
If you loved the HF1's open yet smooth treble extension, the HF2 will thrill you with the same--it doesn't sound to me as though it reaches any higher, in terms of extension, but it certainly does so in terms of having the ability to be more delicate, more precise.
I'm not saying they won't be a great headphone or good value, but with what we know about them so far it doesn't seem likely that they'll offer the same "bang for the buck" value and impact or create the same devoted following as HF1's. Of course I'm hoping that this will be proven incorrect and Mr. Grado wows us with something truly limited edition and makes us say "these only
cost $429?? outrageous!".
my 2 cents.