[SeEnCreaTive]

I will take more pictures. I don't have a measurement rig. Could someone direct me to maybe a thread as to how to make one?

Yep, the other big t50rp thread.

BMF has step by step in the first post. You'll have to search that thread a bit, BMF and I had a convo about microphones. The one he uses is rather limited in availability

 

[planarmagnetic]

Open back

 

[PETEREK]

Is the rest of the headphone 3D printed or is it from a donor headphone?

 

[planarmagnetic]

.

 

[mikey1964]

  What type of mods did you apply?

I've not done any mod yet, only replacing the stock pads with Alpha pads. I haven't quite decided what mod to do for the T50RP, any suggestion? Would like to boost mids and treble a little.
 
@planarmagnetic, that look kickass! 

 

 

[PETEREK]

All 3d printed and designed by me.

Very nice man.

 

[Armaegis]

 

Open back

 
The suspension, is it a single string piece or multiple? I know you mentioned before that you intend for it to be replaceable, but it looks like threading it wouldn't be the easiest thing.
 
The Audioquest Nighthawk has a 4-elastic suspension. The one I tried had one broken elastic, and it completely ruins the fit. Just something to think about.

 

[tarsonis]

I will take more pictures. I don't have a measurement rig. Could someone direct me to maybe a thread as to how to make one?

Yes, The Bmf thread. But I wouldn't recommend the InEar method as it to much hussle and you would need a HRTF compensation curve for your concha/pinna. Well better than nothing.

Was chatting with solderdude a long time ago and he convinced me to use a flat surface measurement rig. Well a great tip as those measurment are more reliable and truely in the treble region. As a sidenote more comparealbe to the popular ones like Innerfidelity, goldenears etc...

 

[ZGLISZCZ]

not any more

 

[ZGLISZCZ]

BTW. Recently I had some spare time to work on my headphones and I'm wonder about one thing. Can anyone tell if inside wall of headphones cover should be smooth without any sharp angles or it would be better to create some sort of diffraction structure on top of it?

 

[SeEnCreaTive]

BTW. Recently I had some spare time to work on my headphones and I'm wonder about one thing. Can anyone tell if inside wall of headphones cover should be smooth without any sharp angles or it would be better to create some sort of diffraction structure on top of it?

If you want to stop sound reflections, bumpy surfaces help diffuse the sound. Something like the lattice mods or having "rungs" of sound foam.

I always thing of sound something like light (too an extent) in this case a smooth mirror reflects, and a rough one, not so much.

 

[ZGLISZCZ]

If you want to stop sound reflections, bumpy surfaces help diffuse the sound. Something like the lattice mods or having "rungs" of sound foam.

I always thing of sound something like light (too an extent) in this case a smooth mirror reflects, and a rough one, not so much.

heh I always thing of sound as something like liquid yes that what I wanted to do, maybe different shape but with same purpose. Thanks

 

[nick n]

Look in the back of the Kennerton Magister cups for example.
 
 I wonder if someone could make a mini diffuser?
 That'd be fun.
 You can get calculators for frequency ranges that you wish to affect, and it shows you the design, but as far as taking that exact thing and scaling it down who knows.
http://arqen.com/acoustics/acoustic-diffusers/
LOADS of charts ( really cool ) and plans free. All the technical stuff you'd need.
 
also more technical stuff
http://www.rpginc.com/docs%5CTechnology%5CWhite%20Papers%5CAcoustic%20Diffusers_The%20Good,%20The%20Bad%20and%20The%20Ugly.pdf
 
https://www.gearslutz.com/board/studio-building-acoustics/766977-diy-sound-diffusersa-free-blueprintsa-slim-optimized-diy-diffuser-designs-fractals.html
 
This one has the Skyline Diffuser calculator that spits out plans for you.
http://www.mh-audio.nl/ACalculators.asp
 
 
also some other calculators here, for fun.  http://www.mh-audio.nl/spk_calc.asp 
I'd love to see someone make a mini Skyline out of small lengths of square rod balsa wood.
 
Can you tell I have been looking at acoustic room stuff recently, it's fascinating.

 

[Hutnicks]

So I'm guessing you're knee deep in Floyd Toole's book then? 

 

[ZGLISZCZ]

  Look in the back of the Kennerton Magister cups for example.
 
 I wonder if someone could make a mini diffuser?
 That'd be fun.
 You can get calculators for frequency ranges that you wish to affect, and it shows you the design, but as far as taking that exact thing and scaling it down who knows.
http://arqen.com/acoustics/acoustic-diffusers/
LOADS of charts ( really cool ) and plans free. All the technical stuff you'd need.
 
also more technical stuff
http://www.rpginc.com/docs%5CTechnology%5CWhite%20Papers%5CAcoustic%20Diffusers_The%20Good,%20The%20Bad%20and%20The%20Ugly.pdf
 
https://www.gearslutz.com/board/studio-building-acoustics/766977-diy-sound-diffusersa-free-blueprintsa-slim-optimized-diy-diffuser-designs-fractals.html
 
This one has the Skyline Diffuser calculator that spits out plans for you.
http://www.mh-audio.nl/ACalculators.asp
 
 
also some other calculators here, for fun.  http://www.mh-audio.nl/spk_calc.asp 
I'd love to see someone make a mini Skyline out of small lengths of square rod balsa wood.
 
Can you tell I have been looking at acoustic room stuff recently, it's fascinating.

 
Thanks Nick N, those are some serious stuff. I'm thinking about some sort of geometry that will guide sound wave to sides and back of the headphones. I have angled wall that suppose to break and move it to sides a bit but Im not sure if I made right angles as I needed to compromise space and shape. It reminds me a bit Lockheed F-117 you will see when It will be done. I also want to implement my wave guides I posted while ago in BMF thread: http://www.head-fi.org/t/618659/fostex-t50rp-incremental-mods-and-measurements/1620#post_11275121