CHANGSTAR: Audiophile Headphone Reviews and Early 90s Style BBS

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Author Topic: Alpha Dogs Measurements  (Read 14016 times)

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Hands

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Re: Alpha Dogs
« Reply #50 on: November 13, 2013, 11:05:19 AM »
Quote from: ultrabike on November 13, 2013, 09:29:55 AM
All these said, I don't think these are bad headphones at all. The factory tuning is relatively neutral, though perhaps a little tilted to the treble, which did not bother me at all.

I thought they were quite good overall, but also the treble response might be a bit too uneven and peaky for anyone with tastes and/or hearing sensitivities similar to mine (as I've repeatedly stated). I can't say for sure, but I might have liked them more even if the treble response was made smoother without being lowered at all as a whole.

The additional breakdown of the measurements is particularly interesting to me around the 5-6KHz spot with the variations between the two drivers and in the two left channel measurements. I had some trouble identifying the exact spot of the peak in that area, and now I'm wondering if it potentially had anything to do with very slight channel imbalances and/or placement on my head. I had the most trouble getting the left pad to seal. It was also more deformed looking than the right one (noticeably closer to the bottom of the pad), even after they had a day outside of their box. I didn't have that problem with my Mad Dog, and I'm assuming that's not a regular occurrence and more likely due to it being passed around by a lot of people, constantly being repackaged and opened, etc.

Once they were properly sealed, I can't say I had any problems with channel imbalances. Still couldn't pinpoint that one trouble spot for me exactly, but the bit of EQ I used fixed it enough that I no longer cared.
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killkli

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Re: Alpha Dogs
« Reply #51 on: January 04, 2014, 03:24:42 PM »
Also got my Alpha DOG today, though my measurement equipment is not very ideal to closed backs
(dont know why, the bass always got lower than openbacks)

Anyway, here's the impulse and CSD plot I got from my pair:

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Hands

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Re: Alpha Dogs
« Reply #52 on: January 04, 2014, 03:49:02 PM »
Hey, thanks! Perhaps you could try lowering the CSD floor to -30 to -35dB or so. Could you also do a full frequency response and harmonic distortion test as well? Unless by "not very ideal" you mean really messed up or unreadable.
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ultrabike

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Re: Alpha Dogs
« Reply #53 on: January 10, 2014, 01:12:10 AM »
Quote from: killkli on January 04, 2014, 03:24:42 PM
Also got my Alpha DOG today, though my measurement equipment is not very ideal to closed backs

Not bad at all IMO. I also think that -30 to -35 dB floor for the CSD, like Hans said, would help. Can you provide the FR plot too?
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Hands

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Re: Alpha Dogs
« Reply #54 on: January 10, 2014, 04:10:42 AM »
The CSD matches up with what I heard in many ways, but I'd like to see how the response looks when you factor in <500Hz. And since this is from a new unit that shouldn't be subject to the "screw issue" of the tour pair I listened to, I'm suspect that what I heard was due to that missing screw.
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Marvey

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Re: Alpha Dogs
« Reply #55 on: January 10, 2014, 05:18:40 PM »
Hmm, that doesn't look totally right. What did you set your FFT window rise time to and how far before and after the the impulse did you set the FFT window?
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TMRaven

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Re: Alpha Dogs Measurements
« Reply #56 on: February 21, 2014, 12:45:38 AM »
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Marvey

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Re: Alpha Dogs Measurements
« Reply #57 on: February 21, 2014, 12:50:28 AM »
Darn. Dan said he had made some tweaks at CHANGFest 2014. I wanted to hear them, but I never got to it.
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Questhate

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Re: Alpha Dogs Measurements
« Reply #58 on: February 21, 2014, 01:02:52 AM »
Did he have the new tweaks there?

I listened to uzi's Alpha Dog, which was most certainly the old version. Must not get along with my ear shape.
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TMRaven

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Re: Alpha Dogs Measurements
« Reply #59 on: February 21, 2014, 01:59:43 AM »
I forgot to ask earlier, but when I heard the Mad Dogs for a couple days I thought their overall balance was rather good, but the entire sound signature has this plasticy, rubbery kind of veil over it, as if it was a result of being too damped and restricted or some kind of weird resonance that didn't allow the sound to be as defined as it could.  Does the intricate design of the super cups on the alpha dog get rid of this veil effect? 
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