By creating this "room" for the ears to sit, positioning of the cushions with regards to the ears (i.e., forward or back) is somewhat critical in finding the absolute sweet spot." (
http://www.gradolabs.com/page_headphones.php?item=fa25fd0be6abcd040b8093b9915a2126)
Sony Q010-MDR1 (Qualia 010) measurements on Headroom:

I repeat, these are US$2400 Qualia 010 measurements!
Crappy isn't it? It doesn't make sense at all don't it? What are you going to do about it? Those are in no way indicative of the (very) highly regarded listening experience the user/owner at the end is going to get (unanimously positive on Head-Fi). Why? No idea, but here's a simple hypothesis: Qualia 010 design philosophy, pads, headband(s), driver angling, and the principles behind just about every other components and materials have all have been pushed further and beyond limit, in order to maximize the performance of the headphone, which ultimately leads sound quality. The Qualia line of Sony products is a statement and a boutique to showcase their best and what they were truly capable off. They took their best TVs, camcorder, minidisc player, video processor, projector, and even the bacterial yogurt MDR-R10 drivers and improved upon them! That is research and development and material, acoustic, electronic, physical (and more) sciences coupled with some great engineering and technological know-how Japan is well reputed for, all on the same table, and yes, you have no idea how much everything about them has been measured and re-measured, both the parts independently and when put together, in laboratories far more sophisticated than ours.
In this case the problem is probably the fit on the standardized head and microphone-ears. This headphones as always been said to be one of the most fit-dependent, which is to be expected when you're dealing with a technological marvel designed by following very strictly and applying very rigidly only the best proven principles.
It's only an hypothesis. It seems like the tester didn't struggle that much with placement of the headphones according to the repeated and staying similar raw frequency response curves.
What if the qualities of the Qualia 010 transcends everything our limited eyes can understand from looking at a narrowed down sample of it under the microscope? Headphone measurement is, by definition, a radical departure from the usual holistic approach that is to simply listen to it, to a top-down analysis of its function into parameters readable by a computer with the use of test tones, frequency swipes, noise and square waves in order to make a very limited assertion about how an isolated pure tone is reproduced in relation to the rest of the band, how much the harmonics of the fundamental frequency are being excited, and how fast it then decays. It's not much, but we've found a way of representing it all with curves on a sheet. We managed to disassemble the sound, but the other way around is still impossible, no one knows of how to put back the exploded pieces together find the initial sound. We
think we can tell the good headphones from the bad ones, yet headphone measurements doesn't tell us a single darn thing about how it's going to function in nature --when playing back music--, and in an ecological context --when our head and in relation to our hearing sense and psychological representation of the stimuli (and NO I'm not talking about subjectivity and personal bias! I'm talking about the way our brain transforms alternating density air fronts and excitation of cochlea's ciliated cells into a note, how harmonics are taken into account etc.).
PS-1000 measures better than the Sony Qualia 010, therefore, PS-1000 is a great headphone, yay!
I could end my post this way, but I won't.
How absurd, meaningless, and blinded is that? Yet we see and make such statements every day on Head-Fi... only a very few of us really takes measurements found on Innerfidelity with the HUGE deserved grain of salt Tyll is warning us about everywhere.
People shouldn't even be allowed to make assertion about a headphone's sound when they never heard it...
What is the ideal frequency response curve? what does non-linear harmonic distortion sounds like? how come the Fostex TH900 sounds less bassy than a LCD-3 (have you seen their measurements?!) how come even the most hardened objectivists also enjoy and sometimes prefer poorly measuring headphones and feels sympathy toward others who like to have a bit of sparkly sounding resonance in the highs, while despising and fighting to eradicate all resonance from the face of the earth at the same time?
When you look to threads in the 2005, people called Grado's bass accurate and natural, soundstage realistic, as opposed to fake and artificially tridimensional, detail extraction unprecedented and superior to every other headphones and its instrument rendering and sheer musicality/emotion was like a dream come true, a music performance brought to life. The RS-1 (Grado's flagship at the time) was popular and regularly thought of by Grado's experienced, dedicated and persevering fan-/userbase as the best dynamic phone ever (yes, above the MDR-R10, can you believe me? I will give you threads to read straight away and you will have no choice but to). Now that measurements are all over the place, though the headphones themselves remained virtually unchanged,
people's idea of their sound changed... Grados are now being called names: "U-shaped", "rolled-off", "peaky", "distorted", "noisy/resonant"... and yet we have no idea of how these concepts impacts the sound of real music, as played back by a headphone. We use these words on a regular basis to describe the sound of a headphone, yet we don't know to which extent it is a substance that is represented in the sound of our headphones or if it is something our brain can even perceive. Personally, I believe that
it's not, both questions, and that we're all making that up. There's no way, not even a chance a 2005 Grado owner could have imagined such fantasies...
Headphone measuring is a science in its infancy, and we know so little about it, as a science. The more we progress in the field of measuring our own headphones, the more those who are ahead of the movement realize how the barrier between measurements and actual sound reproduction is vague in size and imprecisely shaped and placed --but surely enough, it's there--, and how its definite presence, extension and impact should not be "reducted" (by reductionism) or mitigated during the interpretation of any measurements. Testing a headphone in a lab and listening to music are two radically different activities, and the results they produce still doesn't correlate together at all; let's not crush our own dreams implying that they do!