[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.

 

[Aldo40]

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

Yes resistance // maintains impedance and serial resistance varies gain

 

[Arski]

Ok, I did the 2 way with the Sonion 33aj007 and Sonion 2389. Crossover with 4,7uF on a 2389, no dampers 1,5ID tubes. The graph looks like this, what do you think I should correct for that setup?

 

[IEMbiker]

Ok, I did the 2 way with the Sonion 33aj007 and Sonion 2389. Crossover with 4,7uF on a 2389, no dampers 1,5ID tubes. The graph looks like this, what do you think I should correct for that setup?

by reducing the tube length and bigger ID (2mm) of 2389, you can have better performance at the higher frequency range.

 

[Arski]

by reducing the tube length and bigger ID (2mm) of 2389, you can have better performance at the higher frequency range.

Thanks,I’ll try to improve that range, do you think 2mm on twitter only? Leave the woofer as it is?

 

[IEMbiker]

Thanks,I’ll try to improve that range, do you think 2mm on twitter only? Leave the woofer as it is?

If you like bass then use the 2389 full range with 10 or 20 ohm and low pass the 33AJ.
tubing for 2389 ID 2mm x 11mm. white or green filter to your taste.

 

[dhruvmeena96]

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

which measurement standard is this bruv
is it 711 calibrated or some other mic coupler

 

[IEMbiker]

which measurement standard is this bruv
is it 711 calibrated or some other mic coupler

non-standard DIY measurement mic.

calibrate with an oscilloscope and sound level meter.
The mic is from Panasonic, flat respond from 20-16k.
ZEX Pro measurement comparison with 711 is almost the same just no 8k artifact peak.

 

[prawdziwysimone]

Hello guys! I've ordered IEC711 coupler and I'm going to start learning how to tune. What relatively cheap BA drivers would you guys suggest me to start the journey? Firsty i want to do my first single BA IEM of course, what is good to start with? Or some suggestion on cheap options for future 2 way system drivers so i will get all the drivers in one order

 

[kha1id]

Hi

im working on HODVTEC 31618. Rc Low pass filter or dampers work better?

 

[swtnate]

Hi

im working on HODVTEC 31618. Rc Low pass filter or dampers work better?

L-pad for volume reduction
ID tube size and length plus yellow damper position for roll off.

 

[kha1id]

L-pad for volume reduction
ID tube size and length plus yellow damper position for roll off.

understand.

 

[dhruvmeena96]

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

then you need a uppermids and some bass
my suggestion is to zobel GQ and add resistor to lower its sensitivity and add yellow damper to DD

 

[Arski]

Hey, thanx for all the suggestions, I’ve finished my first stage iem, played a gig with it and I am super happy how they sound onstage. This is how they look and how they sound. 3d printed. I wanted to ask how could I improve the response? I was thinking about white damper on the fulrange 2389 cause sibilants are a tiny bit too sharp. If you got some thoughts, let me know