"Open Alpha" T50 3D printed headphone project from MrSpeakers
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audiolibrarian

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Yeah, modding and that is fun, but I cannot afford to mod these with the possibility of making them worse or just completely ruining them... Trust me, I'd like to try, but they are my best pair of heaphones that I own.
 
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musicfan145

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I'm curious as to how many of you actually use testing equipment and try to reproduce your tests as accurately as possible while trying out different things. This is not supposed to be a negative comment by any means, but it just seems strange that so many people who are trying to get better audio quality seemingly just do it by "ear", which is quite flawed. Maybe it's just trying to get what "you" like rather than what it scientifically sounds like.

I don't have the necessary equipment to do this with headphones, but I have used a calibrated mic and a 1/24 octave RTA to EQ my car audio system to ruler flat... It sounded awful. So yes, it really is about getting a tuning that you like.
 
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musicfan145

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Yeah, modding and that is fun, but I cannot afford to mod these with the possibility of making them worse or just completely ruining them... Trust me, I'd like to try, but they are my best pair of heaphones that I own.

Soldering on the drivers is probably the most risky part of the Open Alpha project, If you aren't comfortable with that, you should probably just stick with the stock cups and wiring. There are quite a few mods that you can do to the T50RP that are not destructive and not even risky. The biggest question is whether you find the stock pads to be comfortable. If so, you might not need to change a thing. If not, swap out a more comfortable pad and go from there. Without even opening the cups you can get huge changes from different ear-side damping materials and covering the cup vents to varying degrees. If you are willing to open the cups, I recommend ordering the Mayflower mod kit and trying it out.
 
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audiolibrarian

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I did end up getting more comfortable pads for the stock MK3, but that is as much as I've done. One thing I'd really like to do is make it into a balanced mini xlr setup. The problem is that I my listening skills are quite lacking and I would be blindly guessing as to what I did or how to fix it. I also don't have the money nor time to try and make a rig to test them on.
 
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nereus

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  Ok, so you had to split one strand or add another one I guess? I think I will stick to making new cables, though...
 
While I do not know how large those cotton balls are, I believe I used much less wool, so seems like a solid plan to start tuning that.
 
 
Yep had to split at the Y join but re-used the stock cable all the way. Solder on the hirose connector.

 
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7keys

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I asked Arty McGhee if he'd send me his Open Alpha so I could give it a listen and he said yes, imagine that. So he shipped his Alpha all the way up to Canada.

I was very impressed with the sound of these cans. I usually don't like closed cans because of the lack of soundstage and closed in sound but these have a nice big soundstage like an open headphone. The bass is goes deep with a very nice midrange, it doesn't have extended treble where you hear all the micro details, its a little rolled off, but when you mix all the qualities of this can together it sounds simply fantastic

Thanks Howard.
 
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axtran

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I asked Arty McGhee if he'd send me his Open Alpha so I could give it a listen and he said yes, imagine that. So he shipped his Alpha all the way up to Canada.



I was very impressed with the sound of these cans. I usually don't like closed cans because of the lack of soundstage and closed in sound but these have a nice big soundstage like an open headphone. The bass is goes deep with a very nice midrange, it doesn't have extended treble where you hear all the micro details, its a little rolled off, but when you mix all the qualities of this can together it sounds simply fantastic



Thanks Howard.
 


He sounds like a great guy! :)
 
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7keys

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I asked Arty McGhee if he'd send me his Open Alpha so I could give it a listen and he said yes, imagine that. So he shipped his Alpha all the way up to Canada.



I was very impressed with the sound of these cans. I usually don't like closed cans because of the lack of soundstage and closed in sound but these have a nice big soundstage like an open headphone. The bass is goes deep with a very nice midrange, it doesn't have extended treble where you hear all the micro details, its a little rolled off, but when you mix all the qualities of this can together it sounds simply fantastic



Thanks Howard.
 


He sounds like a great guy! :)
He is!

We've made a few trades in tue past, cables for wood cups. We share a liking for Grado modding.
 
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Arty McGhee

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thanks man
 
some of us work in a vacuum and don't get to meet-ups that are 3 hours away
 
 
i definitely want to to more of this
 
hit me up on PM
 
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Wow, massive thanks to MrSpeakers for releasing these files to the community. This is absolutely amazing. I was planning on designing my own over the Easter break but I guess I will be getting a head start printing instead. 
 
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Wuthoqquan

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Hi, sorry for the late reply!
Not sure what happened to the links... I've checked my Dropbox account a few minutes ago and all the files are still there!
 
I understand that there's been some changes made by Dropbox lately, which may likely include the way public links are created, hence why the previous one are now no longer working.
Ok, guess I'll need to go back on my Dropbox account, copy the new links and share them here again.
 
I'll do this straight away!
 
Cheers,
Marco
 
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Wuthoqquan

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Could someone share stencil for foam made by wuthoqquan? Links doesn't work.

Hi,
 
all the links have now been fixed and they should work properly again!
 
As explained in my previous post, it looks like Dropbox has made some changes to the way public links are created, which unfortunately has corrupted the ones previously shared here on Head-Fi.
I've edited my previous post and updated them with the new (current!) links.
 
Anyway, I'm also providing the new links here below, for those who might prefer a single post with all the links to the stencil created for the Open Alpha project.
 
1) Foam Stencil
 
JPEG version:
 
https://www.dropbox.com/s/7n4c0ys1q23giy2/Acoustic%20Foam%20Stencil%20for%20Open%20Alpha.jpg?dl=0
 
 
PDF version:
 
https://www.dropbox.com/s/9zbpokrqz8l1vt1/Acoustic%20Foam%20Stencil%20for%20Open%20Alpha.pdf?dl=0
 
 
2) Gasket Stencil
 
JPEG version:
 
https://www.dropbox.com/s/girzy0z7pix65z3/Gasket%20Stencil%20Open%20Alpha.jpg?dl=0
 
PDF version:
 
https://www.dropbox.com/s/dwvnttowoi88q7s/Gasket%20Stencil%20Open%20Alpha.pdf?dl=0
 
 
3) Baffle Ring Stencil
 
JPEG version:
 
 
https://www.dropbox.com/s/vfsw14nzfr2lcze/Baffle%20Ring%20Stencil.jpg?dl=0
 
PDF version:
 
https://www.dropbox.com/s/71vbdsg1ad11rrr/Baffle%20Ring%20Stencil.pdf?dl=0
 
As always, please remember to print the stencils at their 100% size, with no scaling set in the printing options.
 
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BuLLeT_BaiT

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Hi Wuthoqquan, Im signed into dropbox but I still can't access these files. Getting a 403 error.
 
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Wuthoqquan

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Hi Wuthoqquan, Im signed into dropbox but I still can't access these files. Getting a 403 error.

Hi, that's really weird! ... could you please try again and let me know? Thank you!

EDIT: Ok... my bad! Now I've finally sorted out the new link settings in Dropbox! :-/
Everything should be working properly now! Please let me know! :)
 
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