I really enjoyed this video, IMO probably the greatest recorded audiophile discussion of all time that I have seen. So many good points brought up to the table that I've already figured a lot about myself too.
Especially I can relate to this "Headphone B doesn't sound as good as headphone A"-discussion. Many times I felt that instantly when trying a new headphone it sounds "worse" to me as I'm so used to headphone A's sound. Upon further listening with headphone B it grows on you and you start to like it more. I personally believe this "getting used to period" has much more weight to it than burn-in.
I do believe burn improvements exists to some extent but nowhere as much as our brain adapting to the new sound (goes well along with the fact Tyll pointed out how amazing our hearing is able to "readjust" after a hearing loss).
Now on a slightly related topic which was also discussed a lot I must mention as a person mastering a lot of hardstyle tracks these days for upcoming producers. I don't either believe "flat" sound to really be THAT important and often overexaggerated its importance even for studio use. I keep mastering with my M-Audio Q40 that has a good 8dB or so bass boost but otherwise quite evenly balanced measuring in the mids & highs.
Does this mean my masterings will be too bass-shy due to 8dB bass bump on my headphones? Definitely not. The thing is that I've at this point I've probably listened to like a thousand different hardstyle tracks and more so hours so I got a good sense of how it sounds like on these particular headphones. I can nicely judge if a track maybe has slightly weaker than average bass or slightly above the average for example. Now I personally work along the "golden middlepath"-principle that "the middlepath is always the ideal" not necessary what would sound very ideal on my own equipment (or according to my own taste), the brightest recording that exist is probably too bright, the darkest recording too dark, somewhere in the middle, the average is probably what works best for as many people as possible.
This is also why if I would for example switch to say an LCD2 or HD800, I wouldn't immediatly be able to master as nicely as with my shy $120 Q40 headphones because I would lack that perception of what does the average hardstyle sound like on those headphones so I can't accurately tell the different elements such if the bass levels are fine or the leads are loud & clear or too smooth sounding etc and would have to get used to the new headphone's sound for a while and listen to many different hardstyle tracks on those headphones to be able to properly master tracks again. I personally believe this principle leads to much better end results than simply trying to get everything as nicely sounding as possible on the best "sounding" & measuring headphones.
On the topic of subjectivity vs objective, my beliefs are fairly neutral, both complements each other and I wouldn't purely base my purchasings solely on either subjective measurements or objective measurements but objective measurements are only useful when you know HOW to use them (as it's quite a science behind it all as Tyll has explained very well) and that is when you learn your personal preferences in sound, can start comparing against THAT and not the "objectively measuring ideal sound".
Edited by RPGWiZaRD - 10/31/12 at 12:05am