Those look better! Thanks! The 200Hz-1KHz hump is interesting. I'll have to listen more closely for that when I get them back, though feel free to take your time with them, Marv. Dan reported that the alpha pads raised the 200Hz-5KHz spectrum by 2-5dB (greater increase the higher up you go, mostly). Now I'm really curious how the older pads would have measured on your setup! The response might actually measure smoother up to 5KHz or so on your setup with the old pads but with a darker tilt, if I had to guess. But, eh, that's OK. Not worth the hassle. For anyone curious, here's the comparison measurements Dan posted: https://www.mrspeakers.com/image/data/mrspeakers/LCD2_DP_AP.png (Blue = alpha pads, Red = old dog pads, Green = LCD2)It does sound like there's a bit of variability across Mad Dogs of the same revision, so mine might measure better, worse, or the same as a "perfect" unit. That's always something to consider. I'm sure Luis has his headphones more closely matched due to the time he spends on each one.I actually like a slightly darker than pure neutral sound (they're both good to my ears), and it appears as though these have a dark/neutral-ish tilt. The lowered treble works well for my ears, though I have noticed that peak around 10KHz. It's interesting, but not unexpected, to see it primarily in just one channel though. Seems common for the T50RP.The one thing I really like about the alpha pads is their comfort and fit, though I eventually plan on making my own suspension headband for it. Dan's comfort band just doesn't cut it for me. I've been lazy and just stick old earpads between it and the top of my head when listening, haha. I do get a better seal with the alpha pads than the older pads, and whether or not they measure better than the old pads, I do prefer how they sound.Ultimately, I did prefer the Paradox when I had it. I still found the Mad Dogs with the older dog pads to be brighter or thinner sounding than the Paradox, though. I'm still trying to figure out exactly what it is about their frequency responses that make that difference for me. Either way, I was able to get the Mad Dogs refurbished for around $260, and I got the alpha pads for free because Dan wanted me to beta test them for some reason. Not really sure what his reasoning was behind that, but I can't complain! Overall I'm very satisfied with them for the price.I'm also curious if distortion changed at all, but it's fine if you didn't redo those measurements. Thanks again!
I could definitely spot the same bumpy pattern from 300 Hz ~ 1kHz comparing the new Maddog measurements of here and of InnerFidelity, however the bass and treble behaviour I cannot spot any correspondence. There is definitely something off somewhere, either with product variation or measurement deviation, because there is typically some degree of pattern correspondence between FRs here and that of IF for other headphones.
Quote from: jerg on April 09, 2013, 11:54:39 PMI could definitely spot the same bumpy pattern from 300 Hz ~ 1kHz comparing the new Maddog measurements of here and of InnerFidelity, however the bass and treble behaviour I cannot spot any correspondence. There is definitely something off somewhere, either with product variation or measurement deviation, because there is typically some degree of pattern correspondence between FRs here and that of IF for other headphones.Here's the link to Tyll's latest MD measurements, as the ones you linked are rather old (from 840 version, I believe): http://www.innerfidelity.com/images/MrSpeakersMadDog2013.pdfDan was not sure why the upper mids and treble came out so weird on that one. Same for the rather high distortion, though it doesn't look like the MD has super low distortion to begin with. It's hard to say exactly what's going on here.
Whoa, what's up with that distortion?
