I drove the 650s with a basic soundcard, magni stack, lyr2, and an audeze deckard. Simple fact is to me they sound muddy. To you they don't. I am not disputing your hearing nor am I claiming the hd700s are perfect without treble, rather i was pointing to the fact that large numbers of people use them without issue and the treble peak is either not noticed or is not severe enough to be an issue for plenty of people.
Sound is massively down to individual perception. I did not join this thread to criticise the hd650s (i think they are fantastic for what they are) but i felt a balanced view is important and when i see criticism of the hd700s i tend to defend them as i have a soft spot for them as one of my first high end headphones.
On a side note, headfi is a huge forum dedicated to audio equipment, to say it is unreliable is to say the ocuk forums are unreliable, all forums are unreliable to an extent....it is about the discussion, for every unreliable post their is a contrary point to help educate you. The trouble with reviews on sound equipment is it is so subjective and unless you test each piece of equipment used by the same reviewer and felt it was exactly the same as the review reports, it is all opinion and should be backed up with personal testing.
Anyway, didnt comment to annoy anyone, just thought i would add my two cents.