I wasn't questioning whether he knows what neutral is, I was looking for clarification as to his use of the term neutral relative to the term natural.
This makes a lot of sense - thanks! However, I still think that, in the case of the bass response of the HD800S, the elevated bass response would be better described as 'natural' rather than 'neutral'.
If you look at the following graph:-
=4061&scale=30]http://graphs.headphone.com/graphCompare.php?graphType=0&graphID[]=4061&scale=30, you can see that any enhancement of the bass from the HD800 will put the bass response further North of flat than it is already. That can't technically (AFAIK) be described as more neutral. I may well sound more natural, however.
This is where it gets difficult with headphones I think. They are so close to the eardrum... moving the headphones a bit backwards or forwards can alter the sound (Tyll sometimes mentions that one headphone is more sensitive to different positions on his meadurement head than the other), seal alters the sound, worn earpads as well (reducing the distance to the eardrum/resonance chamber), ...
Room acoustics do make speaker science hard indeed... but headphones have their own factors messing with the sound
That alone is enough to make the curve which is represented by the flat baseline in those graphs (as the headphone's curve is weighted to it), a speculation, or an approximation at least. I thought it was even created by listening tests, so there is some subjectivity involved probably. As I understand it, speakers are easier to measure, they should just produce every frequency equally loud in their sweet spot, create a real flat sound signature. (That's given that microphones also record the reality without any coloration or boosting of certain frequencies, so we get a 1:1 reproduction).
Headphones have nowhere near flat frequency curves. Check out Tyll's unweighted graphs... Some frequencies don't travel through air the same way as others, nor does our ear work the same way from this closeby, as if the frequency response of your ear changes by changing the distance to your eardrum. Try moving a tiny speaker closer or farther away, you'll hear tonality change... or pushing the headphones closer to the ears generally enhances bass...
This is nowhere funded theory, rather nothing but a concept that formed in my head by reading around in this great forum, and on Innerfidelity of course.
It's me trying to understand why a "flat and neutral headphone" has a nowhere flat frequency curve when not weighted. Maybe someone with more brains and better knowledge might chime in and verify or correct this concept I created for myself?
^^
What he said.
Thanks...well stated. Except I'd put the HD800S closer to NEUTRAL than the HD600.
Hahah yeah... I anticipated by saying not to quote me on that
I played some bulls eye to quickly make up an example. (And when seeing it on mu smarthone now, spacing is all messed up ^^ my apologies for that)
I never heard a HD600 (shame on me), just went straight for a new HD650 (online order) as the newer was said to be less dark/veiled than older versions. Reason for that: Audeze = too damn heavy for some comfy tv moment or to lie down with it in my bedroom for some pre-bedtime listening, sadly, so I searched for a relaxed sound to have a suitable alternative for my HD800 classic at the time. The latter was too sibilant to my liking for tv (settop-box via toslink into Focusrite Saffire pro 24) (at least as much to the fault of broadcasting signal I think), or through my Vega + Taurus Mk2 for too many music genres, so my relaxing moment got from magical and dreamy one moment, to plainly irritating at times, if not close to unbearable. To give an reference point: as I write, I'm on a train (very early one, so hardly anybody here, so I dare to use an open can
) and just heard some sibilance through my Mojo + HD650... Not at all disturbing, but sibilance nevertheless. So it might be that I'm still traumatised by the HD800 and therefore place it so far to the (b)right side. As I'm apparently sensitive to high frequencies, this might explain why those cans are experienced as bright for me. Maybe I hear highs as boosted so close to my ear. (I still hear up to 19k at the age of almost 29... makes me happy actually, but often drives me crazy as some in buildings or rooms something exhibits this constant high pitch beep or noise. I really started doubting myself, until I installed "spectrum analyzer" on my note 4 which showed a hell of a peak at that frequency
, saving my confidence in my sanity. The curse is that NObody els seemed to hear it, so it never gets fixed
)