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Home-Made IEMs
- Thread starter Bilavideo
- Start date
dhruvmeena96
Headphoneus Supremus
Man......I have found a solution how to connect 4 tubes 1.5 mm each to a 4,7 mm nozzle
4,7 mm nozzle with 4 bores 2 mm each Bore
That's some next level poking
Hahahahha
Also
No need to share
We have @stephensynanta16
As you have given us the idea
He will make the shell for us
Aldo40
Member of the Trade: Alambic-Ears
A professional can give advice or tips if he wishes without being bannedI have found a solution how to connect 4 tubes 1.5 mm each to a 4,7 mm nozzle
4,7 mm nozzle with 4 bores 2 mm each Bore
For your history of 4x1.5mm tubes, one of the practices consists of using metal tubes such as piercing tube or medical tube to extend the PVC tube and thus reduce the thickness in the nozzles as here
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Aldo40
Member of the Trade: Alambic-Ears
this is a method for those who use no printer, Personally I print my 3d shells with tube and integrated chamber so I do not have this problem of having several tubes passed through a nozzle
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Aldo40
Member of the Trade: Alambic-Ears
The problem in multiple-driver designs is rather the place they take in the shell.
In 3D design it is easy to integrate 4 holes see more , most designers is limited to 3-4 tubes see extreme cases of 5-6 tubes at spiral ears.
You have for example designs of 8 drivers on two tubes like the VE8, and it works terribly well so anything is possible
dhruvmeena96
Headphoneus Supremus
2.5mm tube on swfk32254 gives 3.5kHz resonanceThe problem in multiple-driver designs is rather the place they take in the shell.
In 3D design it is easy to integrate 4 holes see more , most designers is limited to 3-4 tubes see extreme cases of 5-6 tubes at spiral ears.
You have for example designs of 8 drivers on two tubes like the VE8, and it works terribly well so anything is possible
And that's how VE8 gets the Pinna on Swfk
Didn't open the iem or anything
Just speculations from me and @senorciem
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Aldo40
Member of the Trade: Alambic-Ears
What creates resonances is mostly the tubes. Doing 3D chambers reduces this. The shells are also thicker because there is more material and are therefore less resonant. For the foam not I don’t use foam, a hole is enough to decompress the remaining volume, after you can have closed configurations despite ventilated drivers like Ve8 for example. It depends on the results we want. So we test and then we choose what we think is best. I designed acoustic enclosures where we used a lot of different foam like the alveolar, the dacron see also the.bitumen plates to reduce the standing waves or the.vibration of box but in an EMP it is more insignificant especially if you make 3 D shells with chamber.
What are the current go-to builds? I can't find the bellsing 10013 anywhere.
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Aldo40
Member of the Trade: Alambic-Ears
yes I already made measurements
Center Tape is a half-coil connection, so half the inductance and half the resistance.
the impedance is divided by 2 and the gain is a little higher than some db.
As we know, impedance increases with frequency. this is something to take into account
when choosing the transition frequency.
there are circuits that linearises impedances like zobel or lpad, on the configuration
proposed by Dhruv, a Lpad on a driver for example sufficed linearized
the impedance of a driver.
LPAD and Zobel are not compulsory circuits, there are severial methods.
then you have to deal with all these proposed solutions, but you can confide in Dhruv he has a very good experience in IEM
what do you call big resistance? a big value?
I don’t think you have to worry about that if you put a 2 ohms or 10 ohms does not affect the sound, the goal is to adjust it to the rest of your config, and maybe you won’t need it, you will see when designing if it is necessary
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