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Author Topic: MadDog Measurements  (Read 14640 times)

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Marvey

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Re: MadDog Measurements
« Reply #30 on: April 09, 2013, 11:53:39 PM »

Yeah, they are slightly darkish. They sound pretty good though. I heard slight harshness around the treble. Can't say what the cause it is, the T50RP drivers are notoriously inconsistent after 5kHz, even on the same headphone. The alpha pads are very nice.

Will retake other measurements soon.
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jerg

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Re: MadDog Measurements
« Reply #31 on: April 09, 2013, 11:54:39 PM »

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!  :)p5

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.
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Hands

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Re: MadDog Measurements
« Reply #32 on: April 10, 2013, 12:31:46 AM »

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.

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.pdf

Dan 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.
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Marvey

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Re: MadDog Measurements
« Reply #33 on: April 10, 2013, 01:11:50 AM »

Whoa, what's up with that distortion?
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CCS

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Re: MadDog Measurements
« Reply #34 on: April 10, 2013, 01:42:43 AM »

These new FR measurements look a lot more similar to how mine sound than the one I was looking at yesterday. Thanks for measuring these, purrin.
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jerg

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Re: MadDog Measurements
« Reply #35 on: April 10, 2013, 02:19:26 AM »

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.

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.pdf

Dan 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.

Oh my bad.

That distortion looks too consistent and non-spiky to be actual high THD I think. At any rate the square waves are impressive.
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Hands

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Re: MadDog Measurements
« Reply #36 on: April 10, 2013, 02:31:53 AM »

Whoa, what's up with that distortion?

No one knows...Dan said he'll check the unit when he gets it back from Tyll. :-\ Looks like the first distortion measurements you got from mine weren't quite that bad, so I'd hoping my pair is more indicative of how the MD actually is. Not sure if they would improve or not with a remeasure.
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munch

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Re: MadDog Measurements
« Reply #37 on: April 10, 2013, 04:21:12 AM »

how bad is the treble sibilance/roughness? very curious about all these modded T50rp phones. though I suspect the Paradox is probably a tad more impressive - don't quite remember what it sounded like, just that it was really nice. a bit tempted to get a pair of decent closed phones for office now.
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Armaegis

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Re: MadDog Measurements
« Reply #38 on: April 10, 2013, 04:56:57 AM »

I wouldn't mind seeing the distortion plots for a stock T50rp and Paradox as well.
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Do you think there may be an acoustic leak from the jack hole? ~Tyll Hertsens

Not sure if I like stuffing one hole or both holes. Tending toward one hole since both holes seems kinda ghey ~Purrin

TMRaven

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Re: MadDog Measurements
« Reply #39 on: April 10, 2013, 05:16:33 AM »

Holy moly the new IF graph for mad dogs is flat as ruler to 1khz, but it also shows it to have an he-400 like dramatic dip in the upper midrange.
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