[Arski]

Addendum - if you arent getting ANY bass and it is just low to high mid - your ear is not completely occluded (sealed). Get your ear sealed. Then add a tweeter.

The problem was just in high end rolloff, you are right, tweeter should solve the problem, but how should I find a proper cap for let’s say: Sonion e50dt? And maybe instead of using gu, maybe 2389?? Caps values is gold here I suppose )

 

[swtnate]

The problem was just in high end rolloff, you are right, tweeter should solve the problem, but how should I find a proper cap for let’s say: Sonion e50dt? And maybe instead of using gu, maybe 2389?? Caps values is gold here I suppose )

Using wbfk, like .82uf
swfk uf
2mmID / 10-12mmLength
white or grey damper at 7-8mm

 

[swtnate]

Thanx a lot, I tried the GU as a main and only ba driver but it has no low end, that’s why I wanted to extend it with the 38. It’s really difficult I must say;D Have you ever tried to make a setup containing ex. 38 and 2389 as a full range iem?

Not a 38, but a 33AJ007 paired with a 2389 is magical.

 

[Arski]

Not a 38, but a 33AJ007 paired with a 2389 is magical.

I need to try this setup, ive got the single and double 2389 driver. Have you got any hint for crossing that 2 Sonion divers (2389 & 33aj007)?

 

[Xymordos]

Hi there hello,

I am new here, been for a while as a reader and student, going through all the posts here. I wanted to start my personal iem for concerts. Anyways, I did my molds and 3d prints for shells and there is everything working fine. The problem I’ve got is to combine BA’s.

I’ve got setup with the Sonion 38AJ007 for bass with Yellow damper, mid and high is Knowles Gu32829 with white damper and tubing is 2x1,5 (inner)

The problem I’ve got is that I couldn’t make a proper Lo-Pass cause adding a cap in parallel on 38AJ007 affected also high end on Knowles. I’ve decided to kill the high end with the dumper on Sonion instead putting a cap. After all sound of this setup is missing high end, rolloff on 10Khz. Do you have any idea to tune this setup? Or does anyone have a good setup for BA’s like

Sonion 38Aj007; 2389D; e50dt; 37AJ007; 37Ap007.

I am slowly losing the faith for building something working and sounding at least good. The setup I described Sonion+Knowles is midrangy as heck. Snare is beating my brain if you could show me the direction I’d be grateful.

Did you add a resistor in series after the parallel cap? Otherwise it'll low pass the tweeter too.

 

[IEMbiker]

I have build a DD with GQ. GQ as full range and DD with 100ohm.
DD from ZSN.

 

[arielsivan]

Hi.

Does anyone have experience with the LS ECGK 61718?
It seems to be similar to bs6 (R.I.P)...
I'm looking for a suitable zobel.

I intend to build CI30120+ ECGK61718.
So I would appreciate ideas for the electrical circuit for the configuration

 

[Arski]

Did you add a resistor in series after the parallel cap? Otherwise it'll low pass the tweeter too.

That was my setup, and the LoPass affected my Knowles instead Sonion only.

 

[swtnate]

I need to try this setup, ive got the single and double 2389 driver. Have you got any hint for crossing that 2 Sonion divers (2389 & 33aj007)?

4.7uf to the 2389
then an L-pad to taste. If you dont want an L-Pad, then like maybe 10-20ohm to the 33

 

[Xymordos]

I have build a DD with GQ. GQ as full range and DD with 100ohm.
DD from ZSN.

Oh did you print your shell? Is this measured on the 711?

 

[mattmatt]

Not a 38, but a 33AJ007 paired with a 2389 is magical.

This is somehow like the UE TF10. Lovely combination if properly matched.

 

[Arski]

4.7uf to the 2389
then an L-pad to taste. If you dont want an L-Pad, then like maybe 10-20ohm to the 33

OK thank you. To be absolutely, 100% Sure (sorry for dumb question) L pad is resistor in series to lower the woofer output yup?

 

[mattmatt]

I have build a DD with GQ. GQ as full range and DD with 100ohm.
DD from ZSN.

looks awesome! what MSLA resin did you use for this?

 

[IEMbiker]

Oh did you print your shell? Is this measured on the 711?

Yup, 3d printed shell and measured using WM61A mic not 711.
here is the link to the shell stl file:
https://drive.google.com/file/d/1Y-yrrHK960COUPGpZVcEVTZBOfYAxpOD/view?usp=sharing

 

[IEMbiker]

looks awesome! what MSLA resin did you use for this?

Thanks. I use E-shell 310 clear resin with a drop of black in 500g mix.
The black is to give a clear appearance which reduces the yellow effect.