[dhruvmeena96]

I have never tried it.
I don't know. For me 2.2 is the lowest .
I will try 1uf and below to a 2354. I will test it later with my ears .

2354 and 2389 are not tweeter. they are fullrange driver with emphasis on uppermid
for tweeter, you have wbfk and swfk

for 2389, i do 2.2uF Center tap to get my pinnae region correct, the fundamental first peak at 3kHz)
but i do this when i have seperate mid region(100Hz to 1kHz) and proper subwoofer/woofer driver)

 

[528367]

 

[HenacanPodwell]

What does series inductor does? Never used inductor but it seems that quite some big companies use them. And with inductor as rc low pass it does not add resistance.

 

[dhruvmeena96]

The 2389 is also a tweeter and that's for sure .
The 2389 is made as a tweeter.

The 2354 has also very good treble . See datasheet.

I never had and I don't have Wbfk or swfk.

man, ok
in iem

below 200Hz - its a woofer/subwoofer
from 100Hz to 1kHz- its midrange
from 1kHz to 5/6kHz - its uppermid(sonion 2389)
from 6kHz and above - its tweeter
from 10kHz and above - its supertweeter

this is not speaker, because in iem you have to compensate the pinna loss(the sound dont interact with our outer ear which boost the region of ~3kHz in iem). Thats why its classified as uppermid(you can classify it as tweeter for your own preference but this tweet thing might confuse other as it confused me)

technically when you see harman curve or any other curve(you see 3kHz boosted) uppermid, most of people here classify it as Uppermid or pinnae region

 

[dhruvmeena96]

What does series inductor does? Never used inductor but it seems that quite some big companies use them. And with inductor as rc low pass it does not add resistance.

low pass
but the Henry value is so low, i think its only for very minor fine-tuning and nothing else
i cannot consider it as a definite part of the crossover

 

[HenacanPodwell]

low pass
but the Henry value is so low, i think its only for very minor fine-tuning and nothing else
i cannot consider it as a definite part of the crossover

I see! Since i have been seeing ue doing series inductor and series resistance, so I have been wondering that.

 

[tomekk]

i cannot consider it as a definite part of the crossover

I confirm this, when adding an inductor to the crossover not much happens on the frequency, a small drop of 2-3 decibels on graph. Only the impedance graph in my config started to ripple. It looked funny up/down constantly.

 

[dhruvmeena96]

Ohhh by the way
This thread is 12 years old now.
Might be the longest lasting thread so far

 

[Wgibson]

Can you currently get sonion E25 or E50 anywhere? Did they stop making them?

Edit: adding random thought: anyone used gutted TWS shells for wired projects? Lots of room in there for BA's...

 

[dhruvmeena96]

Can you currently get sonion E25 or E50 anywhere? Did they stop making them?

Edit: adding random thought: anyone used gutted TWS shells for wired projects? Lots of room in there for BA's...

they are still making them and its hiding somewhere in the dark corner inside the basement of sonion warehouse
its hard to get sonion 4100 , 4400 and E series

 

[Wgibson]

they are still making them and its hiding somewhere in the dark corner inside the basement of sonion warehouse
its hard to get sonion 4100 , 4400 and E series

I guess we just wait and see if a reseller purchases some for low quantity sales.

 

[tomekk]

Can you currently get sonion E25 or E50 anywhere? Did they stop making them?

Edit: adding random thought: anyone used gutted TWS shells for wired projects? Lots of room in there for BA's...

Only one guy in the world sell E25. Check yoycart shop.

 

[Wgibson]

Re-did the CI-30120 brass tube measurements because they weren't sitting right in my head. Turns out I must have had a leak before on my driver inside zobel tests, with the big volume difference in the low end. Here is 0.6mm ID vs 0.2mm ID, both tubes about 25mm long and this time I made sure they were sealed well with tack.

Looks like a nice cheap and easy physical low pass solution for solid subbass with good rolloff to 1k and up. Not to get my hopes up too much, but that curve looks strikingly similar to a sonion 38d1xj007, for about 10% of the cost. Surely won't sound as good, but on paper...

Bonus, it will be extremely easy to package inside a nozzle, this 0.2mm ID 0.6mm OD tube is TINY. So as long as you have shell room to fit the driver itself, should be good to go.

Comparison curve, and 0.2mm ID tube pictured. You are looking at the thin side of the CI, other side is about 3x as wide.

Spoiler

 

[Luffytaro]

Can you currently get sonion E25 or E50 anywhere? Did they stop making them?

Edit: adding random thought: anyone used gutted TWS shells for wired projects? Lots of room in there for BA's...

Only one guy in the world sell E25. Check yoycart shop.

 

[Luffytaro]

How to post picture here?