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Home-Made IEMs - Page 258

post #3856 of 3870
Protip: Don't put a candle wax covered ear impression in the microwave. You'll need a new plate and new eyes.

Protip 2: Ballistics gel doesn't take long to melt if your oven is messed up and only does a higher heat than recommended. Also a release from aluminum foil might not be needed (I'm not sure). Also it's available as as a sample, which is enough for both impressions if you're not a derp.

Protip 3: Make sure your impression doesn't get to close to the bottom of the mold, that weakens it.
post #3857 of 3870
Quote:
Originally Posted by Breezy View Post

You'll need a new plate and new eyes.

 

So it'll explode? Or turn into the sun?

post #3858 of 3870
Quote:
Originally Posted by Breezy View Post

Protip: Don't put a candle wax covered ear impression in the microwave. You'll need a new plate and new eyes.

All the things you shouldn't do with a microwave are always the most fun.

post #3859 of 3870
Plate cracks and fumes are released.

Nice cracking sounds tho.
post #3860 of 3870
http://www.innerfidelity.com/content/innerfidelibits-vibro-labs-veritas-alex-rosson-audeze-resignation-telos-acoustics-sennheiser#R7RlowxuTeOhhGph.97

Innerfidelity introduced the very cheap coupler, vibro veritas.


"
We're sick of expensive industry equipment and inconsistent homebuilt equipment. We want to measure IEMs that we collect, modify, and build. We want to share our results with confidence. We're sick of hearsay and pandering in the audio world.SHOW US THE GRAPHS!


We made a consistent IEM measurement tool called the Vibro Veritas. It's based on the international IEC 60318-4 (60711) standard, but it doesn't cost thousands of dollars.... The audio industry is going tohate us.

Veritas is consistent, affordable, and robust. All you need is a computer with a sound card and a pioneering spirit! It doesn't matter if you collect, build, or design, the Veritas is designed for every audiophile.
"
post #3861 of 3870

Wow, that looks really nice. I think I might get one to try it out!

post #3862 of 3870
Quote:
 The true response as heard by the human ear is a combination of the blue and red curves.

http://vibrolabs.com/blogs/articles/36766977-veritas-quality-and-consistency

 

Not sure where this's coming from.

 

And measurement wise, their graph lacks the typical peak @ 2.7khz, not to mention the steep roll off of ~30db/octave.

post #3863 of 3870
Quote:
Originally Posted by tranhieu View Post
 

http://vibrolabs.com/blogs/articles/36766977-veritas-quality-and-consistency

 

Not sure where this's coming from.

 

And measurement wise, their graph lacks the typical peak @ 2.7khz, not to mention the steep roll off of ~30db/octave.

This. The coupler is not 60318-4

post #3864 of 3870
Quote:
Originally Posted by tranhieu View Post

 

Not sure where this's coming from.

 

Hey tranhieu, Knowles has some great resources posted on DigiKey that discuss this. Every IEM builder should watch these.

 

http://www.digikey.ca/suppliers/ca/knowles-acoustics.page

 

Thanks!

Luke

post #3865 of 3870
Quote:
Originally Posted by taiden View Post
 

 

Hey tranhieu, Knowles has some great resources posted on DigiKey that discuss this. Every IEM builder should watch these.

 

http://www.digikey.ca/suppliers/ca/knowles-acoustics.page

 

Thanks!

Luke


So what you are saying? Your coupler means to be a hybrid of IEC711 and 0.4cc? But the graphs presented on the website doesn't seem to be supporting that.

Just to be clear I'm not attacking you or anything. I just want to know more about your product. I have GRAS IEC 711 and would be interested in finding out some alternatives, not for official measurement but for fun, why not...

post #3866 of 3870

Hey, no worries! I thought you were talking about how Knowles presents their frequency response data. Unfortunately, I am not allowed to talk about my products on Head-Fi (not a sponsor), but I'm happy to discuss this via email or in PM. Thanks. :)

post #3867 of 3870

http://vibrolabs.com/blogs/articles

As you can see, data from Knowles is -22dB, but Veritas is -40dB.
So Veritas is not a IEC 60318-4 compatible coupler.
Edited by quadkiller - 7/15/15 at 10:46am
post #3868 of 3870
Quote:
Originally Posted by quadkiller View Post


http://vibrolabs.com/blogs/articles

As you can see, data from Knowles is -22dB, but Veritas is -40dB.
So Veritas is not a IEC 60318-4 compatible coupler.

 

 

Hey quadkiller, that's correct. Vertias is not IEC 60318-4 compliant, but that's not the point. Those tools exist and they are too expensive for enthusiasts.

 

The IEC specification was my bible while designing the Veritas. My two goals are to keep it low cost and to keep measurements consistent across all units.

 

My goal here is to get more people building IEMs!

post #3869 of 3870

Hello friends! So I make vented hole in sonion 2600. It was a mistake hahahaha because it does not do more bass or sub-bass. And volume of all sound is decreases. Piotrus was right)))

post #3870 of 3870

Its too big hole. You need to port small hole at side. Have you seen driver from se535?

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