[dhruvmeena96]

This is a general information for the new members in this forum. this is a PDF post about how to design earphones from sonion and may help.

https://www.google.com/url?sa=t&sou...FjAAegQIAhAB&usg=AOvVaw0fkvRDsO-6R01b_VSEp_j-

3 way build , all drivers passed in one tube will not sound nice at all without crossover. The one driver may cancel the other. This is a 3 way and not a 2 way example ( woofer - tweeter ). The tweeter must have a capacitor in a 2 way or more .

In a 3 way must be used at least 2 tubes then can be done without crossover and experiment with the length of the tubes and dampers.
Example 1 tube for mid- highs and one tube woofer.

I most experiment with the length of the tube and I prefer not go over 1.5 mm for mid - highs and never below 1 mm for ( subwoofer ).
1.5mm is the standard for Balanced armatures.

If the Tubes are bought from soundlink,

1x 1.5 ID and 1x 1mm ID can pass through.
if we use 2 x 1,5 mm ID tube = 5 mm OD or 2x 2mm ID = 6mm OD = , will not pass inside the nozzle.
Then we will end up with a huge OD nozzle over 8mm .

Then we will need to make a cosmetic plastic surgery and put ears from elephants on our heads to make possible this iem to fit in our ears.

Reduce woofer ID to 0.5
Reduce mid driver to 1
And keep tweet to 2mm

 

[Aldo40]

BTW guys Im going for my build, 3 way crossover

With 5 shrink tubes 1.2 mm each tube.
I have some very high quality shrink tubes.

Be careful with the retractable tubes, there are two defects, ca resonates + and its deforms more in the elbows therefore risk pinching tubes.
finish the PVC tubes with metal tubes if you need more space.
3 tubes are enough, you will complicate your life without counting the fixation of the damper.

look at the VE8 3-way there are only two tubes, it does not prevent it from sounding good and that a was even a best seller and is still current

 

[dhruvmeena96]

Be careful with the retractable tubes, there are two defects, ca resonates + and its deforms more in the elbows therefore risk pinching tubes.
finish the PVC tubes with metal tubes if you need more space.
3 tubes are enough, you will complicate your life without counting the fixation of the damper.

look at the VE8 3-way there are only two tubes, it does not prevent it from sounding good and that a was even a best seller and is still current

VE8..... I didn't like it though....

But yah, it's great example for two tube design

 

[Aldo40]

VE8..... I didn't like it though....

But yah, it's great example for two tube design

yes Dhruv after that depends on the tastes of each one it is true but must recognize that it has been very successful and that its design is well done.
Aldo

 

[528367]

 

[Aldo40]

Yes if you do not want the tubes to resonate, you must fill the length of tube if possible, just be careful not to block the vents of the 38DX1

 

[528367]

Yes if you do not want the tubes to resonate, you must fill the length of tube if possible, just be careful not to block the vents of the 38DX1

If I block the vents of the bass drivers my life will be destroyed

 

[Aldo40]

If I block the vents of the bass drivers my life will be destroyed

 

[seijisandrei]

Hi everyone, may I just ask, are these illustrations correct?

 

[Wgibson]

Done with the hard parts on this one, 4x 32257 and a 31736, 6 drivers per side. External plug and play circuit, all drivers are pinned out directly to 1.27mm headers. 2mm tube on 31736, 1.5mm tube on the 32257, they were dual units, stretched tube to fit on the 2 nozzles. Feel pretty good about my soldering and packaging skills now... This was about $55 in parts. Open to circuit design suggestions, definitely going to try 4x series 32257 and super high pass on the 31736 first. Vents open on the 32257's. Still need to seal the tubes to the nozzle.. UV glue (this is a life saver) to hold tubes on, and to fit header to faceplate. Cured with a purple laser.

Bunch of pics:

Spoiler

Edit: I left the 31736 wired in parallel, so they are not individually pinned out.. Wasn't sure if I could fit another row of pins, and this is mostly about playing with the 32257s but also wanted more top end.

 

[seijisandrei]

Hi everyone, may I just ask, are these illustrations correct?

Anyone please?

 

[dhruvmeena96]

Hi everyone, may I just ask, are these illustrations correct?

This is correct

 

[seijisandrei]

This is correct

Thanks! You're the best!

 

[528367]

Deleted

 

[tirrorex]

Hey guys.
Currently using a pair of headphones AKG K702 from audio technika.
Wondering about replacing those with ciems (that i could use for workout aswell) for gaming.

Did any of you came up with a sound signature close to this?
Basically good soundstage (though i would like it not to big for competitive fps), proper spatial imagining (could be better on the k702 to be honest) and the sound signature is kinda special as it allows to hear footsteps over gunshots, if my memory is correct bass are a little lower than medium (or is it mid-range?).

On a side note, i am looking for shells for my existing materials (
knowlers gk-31732-000
knowles bf-1861-000).
I don't have time at the moment to make custom shells so universal will have to do.
Thanks