Attached the FR/HD/CSD from the UE6000's left channel using the new compensation curve. I was able to get a better bass seal this time, it seems, but you can compare with the earlier measurements to get an idea of how repeatable/consistent tests are (same for the MD measurements from earlier and in the previous post).

Also attached the L/R, FR/HD/CSD measurements of my modded Creative Aurvana Live! (CAL). Again, matches what I hear pretty closely, down to the channel imbalances (these were not precisely modded). Subjectively, these are fairly neutral with a warm/dark tilt. Bass gets pretty muddy when you turn it up, hence the high harmonic distortion. Good detail, but slightly shelved mids. Does really, really well at low volumes. The bass and overall sound cleans up, the details still shine through...very nice. Even at the bare minimum output volume from most devices, these still do really well.

Tyll's measurements of the un-modded CAL: http://www.innerfidelity.com/images/CreativeAurvana.pdf
Golden Ears: http://en.goldenears.net/4446

1. UE6000 L
2. UE6000 L CSD
3. CAL L
4. CAL R
5. CAL L CSD
6. CAL R CSD

Absolutely, but it doesn't hurt to double check, especially when there is junk in your ear that could cause otherwise abnormal interference. I was glad to see it usually matched subjectively.

Edit: Assuming some level of accuracy with these measurements, I think my measurements are a bit telling of my personal preferences based on how the two tweaked-by-myself-in-some-manner headphones measure. Fairly linear/neutral-ish, dark-ish tilt.    I'd have to try some wildly different headphones on my setup first, though.

BTW, I don't think the MD has as much bass as you'd expect based on these measurements, but that often seems to be true of the T50RP.

Edit 2: Russian measurements of what I believe is the Mad Dog 3.2: http://personalaudio.ru/raa/otchety/naushniki/mrspeakers-mad-dog/ (compare against my personally tweaked version)

Great job Hans! I might have read wrong, but it seems you are using your own head/ears as coupling between the cans and the mic. This could make things somewhat closer to Tyll's setup, though according to his discussion here, he might be using a smaller mic that goes dipper into the ear, therefore requiring different compensation curves.

I believe something similar to your approach was discussed here. Hopefully the links can be of assistance.

Some updates on my measurement stuff:

1. Slightly tweaked my compensation curve again. While most WM61As show a treble sensitivity that peaks around 15KHz (measurements vary from unit to unit, but characteristic is similar), I wasn't entirely sure the measured HP results quite matched what I was hearing subjectively (i.e. pushed down the around around 10KHz a touch too much). I also tweaked the area around 2-5KHz for a touch more attenuation after compensation.

2. Invested a whopping, oh, $15-20 on a digital SPL meter. The idea was that I could use that to, at least somewhat, more accurately say, "This headphone is outputting 90dB at 1KHz." Thus, I would be able to more accurately set my mic-in volume setting so that my computer would also show 90dB when playing a 90dB signal. I haven't quite taken it that far, yet, but I have used the meter to get a rough idea of what the headphone is putting out.

I found it more difficult that anticipated to properly measure the headphone's output levels. Where exactly do you place and angle the meter relative to the driver? Is some sort of sealed environment necessary or not? And so on. I experimented with open measurements and sealed-environment measurements and played around a lot with position and angling of the meter.

The sealed environment method made it more difficult to position and angle the meter in a fashion similar to the placement and angling of my ears, but the results were, as expected, more "stable." Another downside was that, subjectively, getting a 90dB reading in the sealed environment was difficult and sounded much louder than I expected it to.

The open environment gave me a lot of room to play around and position the meter similar to how my ears would be, roughly. With this method, I found I did not have to drive the headphones as hard to get the meter to read ~90dB, and I was actually able to listen to music at that volume setting (albeit a bit uncomfortably due to the MDR-1R's sound). That was more in line with what I expected, so I decided to use this method to estimate the output of a headphone. I used that to verify a rough baseline of an 80/100 mic-in volume setting, and I'm still measuring headphones by matching 1KHz to -10dB in ARTA. I like Marv's tests and am roughly trying to emulate how his look and turn out (also for other's familiarity), though it remains to be seen what I'll end up using in the end.

When accounting for slightly different positioning and angling, and doing a sort of mental averaging of these values in my head, the open environment metering method indicates the headphone is outputting somewhere around 87-91dB at 1KHz. Even if not, I can simply classify it as being fairly loud but not ear shattering during music playback.

MDR-1R Thought and Measurements

Looks good. Presentation, down to the fabric-lined packaging, is excellent. Feels lighter than expected, but it also didn't look like it was made from as much plastic as it is. Fairly comfortable, though I haven't worn it for an extended period. Ears sometimes touch the baffle and driver, which is not the best in terms of comfort.

Sound is decent to good at low volumes, but not stellar relative to everything else about the headphone. At moderate volumes, sound is noticeably more flabby but not overbearing. Not particularly great. At high volumes, sound falls apart even further. Mids and highs become harsh and a bit screeching, and bass gets even tubbier and more uncontrolled.

I only bought them to see if they'd be comfortable for long sessions. I'll mod them down the road if they are. I will note that I have not yet listened to these extensively or ran them through sine sweeps in attempt to verify these measurements, but they are a bit hard to listen to at high volumes. These were purchased used from Amazon Warehous e, and I don't know if the MDR-1R is known for product variance.

For comparison, Marv's measurements: http://www.changstar.com/index.php/topic,1300.msg34693.html#msg34693
Tyll's: http://www.innerfidelity.com/images/SonyMDR1R.pdf
Golden Ears: http://en.goldenears.net/15436
Personalaudio.ru: http://personalaudio.ru/raa/otchety/naushniki/so/

I think my modded CAL sounds better.