Oratory1990 has REMEASURED a load of headphones and updated his pdf's

[GaryH]

If anyone is interested in Beyerdynamic DT880 the preference score went from 67 to 88: https://www.dropbox.com/s/0mxc2c4cy7tkxc0/Beyerdynamic DT880.pdf?dl=0

Are you sure the previous score was 67 on Oratory's pdf? Or are you getting that number from AutoEQ's ranking table?

 

[Robbo99999]

Are you sure the previous score was 67 on Oratory's pdf? Or are you getting that number from AutoEQ's ranking table?

Oh yeah, they don't always match when you compare them between the two. You'd think they should match because isn't the Preference Score an algorithm created by Olive/Toole, therefore it should be the same between the two? On the rare occasions I've compared Preference Score it's never matched.

 

[Jimbob54]

I don't have the original PDF. All I can say is that the new score matches my subjective impression of listening to one unit.

The new score suggests a large unit variation. Apparently the score gets very high when all his measured units are averaged.

I'm not sure how helpful his classifications of some headphones are. I assume when he measures subsequent units of items like the DT880 that comes in a range of impedances he is averaging 600 ohm and 600 ohm versions for example, not 600 ohm with 32 ohm or 250. But even then, which flavour are the charts referring to initially? The Beyer range is vast and the only distinction he makes on his listings is fresh or worn pads and one labelled as Black edition.

 

[Robbo99999]

I'm not sure how helpful his classifications of some headphones are. I assume when he measures subsequent units of items like the DT880 that comes in a range of impedances he is averaging 600 ohm and 600 ohm versions for example, not 600 ohm with 32 ohm or 250. But even then, which flavour are the charts referring to initially? The Beyer range is vast and the only distinction he makes on his listings is fresh or worn pads and one labelled as Black edition.

I googled it just now to search Oratory's reddit:
https://www.reddit.com/r/oratory1990/comments/d4lk1i He says:

Spoiler

The thing with the different impedances is that the difference between individual impedance versions is smaller than the unit variance of individual units of the same model.

Meaning: if you take ten DT770 with 250 Ohm then the difference between all of them will be bigger than the difference between the average DT770-250 and the average DT770-80.

Only the 32 Ohm version is tuned differently with a bit more bass then the other versions.

This is based on my measurements of a few dozen DT770 and DT990s as well as talks with Beyerdynamic.

So basically the differences are small and less than unit to unit variation, with perhaps exception of the 32 ohm version. Don't know if this is true of all Beyer headphones.

 

[Robbo99999]

Folks, just received my 2nd K702 back from Oratory today, delivered today.....a hassle free experience and no damage to the headphones....I urge you folks to send in your own headphones to Oratory regardless of whether he's measured your model or not already, because you'll get your own personalised measurements from him too which will allow you do to your own EQ for your specific unit....he may even do an EQ just for your specific unit but I don't know about that, you'd have to ask him if he does that, I'm just thinking of the possible benefits. He's often open to measuring more units of a headphone he's already measured, but of course you'll have to ask him to be sure.....hassle free experience though.....contact him & send him your headphones and do your bit to expand the database or to increase the accuracy of already measured models. He's in Austria....for any postal considerations. It cost me £13 to send him my headphones from the UK via a speedy signed/tracked/guaranteed service, and cost me about the same in return postage (which he organises re return postage). Go on.....send him your headphones, do your bit!!!

 

[Sombreuil]

Not sure where to ask that. Does anyone have an EQ preset for the Superlux HD 330? Couldn't file it on Oratory's Github page.
I thought I could EQ them to match the DT770's results, but according to @solderdude (Here), they don't sound the same, at all.

 

[syr1990]

Any idea which version of the Arya the current EQ is intended for? It just says Hifiman Arya (doesn't indicate stealth or v2 etc). Edit: I'm referring to this profile: https://www.dropbox.com/s/lpakp0jc4deruwr/Hifiman Arya (RME ADI-2 preset).pdf?dl=0

 

[Robbo99999]

Any idea which version of the Arya the current EQ is intended for? It just says Hifiman Arya (doesn't indicate stealth or v2 etc). Edit: I'm referring to this profile: https://www.dropbox.com/s/lpakp0jc4deruwr/Hifiman Arya (RME ADI-2 preset).pdf?dl=0

Go ahead & ask the dude over on reddit, he's very receptive to answering questions on his reddit, ask him publicly on there in his weekly questions thread, as he gets way too many PM's/ DM's, but public good questions get answered:
https://www.reddit.com/r/oratory1990/comments/vfpfi9