Home-Made IEMs
Jan 30, 2017 at 1:07 PM Post #5,882 of 16,074
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Just finished tuning my curing unit woth some blue leds.
Works great!


Any shell pics?
 
Jan 30, 2017 at 1:10 PM Post #5,883 of 16,074
Someone won't be happy when they discover their nail polish gone :wink:
That blue shell is gorgeous.


Lol, I look real manly in the checkout line with a handful of nail polish. I actually caught myself asking my wife if she took my nail polish once. She still never lets me live that one down, and of course has told all our friends I buy nail polish. Good thing is I have 3 daughters so between them and my wife I can play it off.

I purchase it only for my IEM's though, lol. I'm not allowed to use there's, hahahaha.
 
Jan 31, 2017 at 10:32 AM Post #5,889 of 16,074
Anyone know how I can make a simple full-silicone CIEM with a non-removable cable like the CustomArt Music One? What silicone and mold material would I use? What would the process for silicone shells be like? I sent Piotrus a PM but he can't reveal the specific manufacturing process, which is understandable.
 

 
Jan 31, 2017 at 1:12 PM Post #5,890 of 16,074
  Anyone know how I can make a simple full-silicone CIEM with a non-removable cable like the CustomArt Music One? What silicone and mold material would I use? What would the process for silicone shells be like? I sent Piotrus a PM but he can't reveal the specific manufacturing process, which is understandable.
 

I am sure Pitor have a few ticks under his sleeve, as dealing with this hobby requires experience as we are all learning along the way...
.
The overall process is almost the same as acrylic no need for uv...you need some AB DREVE biopor silicone material or other similar products from other companies. I think 40 shore is the usual hardness.
There are a few vid on youtube showing the overall process this one for example https://www.youtube.com/watch?v=2WgR3-NgD3E
 
A few things to remember; don't use vented driver unless you make a pocket of air for them while filling the shell after it have been emptied. Silicone mold tend to turn yellow with time and are annoying to insert.
you will need a special lacquer to coat them.
That's all I got for now
 
Jan 31, 2017 at 1:19 PM Post #5,891 of 16,074
Guys I am working on a uerm clone and I am having issues...weird caused last time I had no problem.
 
Anyone can confirm the CI 60003 used by UE is the same as CI22955, same impedance on both? cause so far using the lowpass filter and High pass filter used by UE. The bass is way above the crossovered mid and treble... any advice is welcomed
 
Jan 31, 2017 at 1:44 PM Post #5,892 of 16,074
  Guys I am working on a uerm clone and I am having issues...weird caused last time I had no problem.
 
Anyone can confirm the CI 60003 used by UE is the same as CI22955, same impedance on both? cause so far using the lowpass filter and High pass filter used by UE. The bass is way above the crossovered mid and treble... any advice is welcomed


They are different drivers. Different impedance and fr response. CI-60003 is custom made so it's pretty much impossible to get them.
PS: any Knowles driver staring with 6xxxxx is proprietary and Knowles won't send you even pdf spec sheets.
 
Jan 31, 2017 at 2:14 PM Post #5,893 of 16,074
 
They are different drivers. Different impedance and fr response. CI-60003 is custom made so it's pretty much impossible to get them.
PS: any Knowles driver staring with 6xxxxx is proprietary and Knowles won't send you even pdf spec sheets.

So that may explain a few things... I think the CI-60003 have a much bigger impedance than the 22955. Cause using the lowpass filter on the 22955 (28ohm and 6.8uf) gave me a cutoff similar to the uerm but when used with the high pass halftaped 2X2389, it had too much spl and the mid and high were too low.
 
Any idea how could the 22955 might be matched to the CI-60003?
 
Jan 31, 2017 at 2:23 PM Post #5,895 of 16,074
  It's not possible. It has completely different output (possibly different motor and diaphragm) I'd suggest just replacing the other 60003 with 22955 and adding some resistance in line if you feel like 22955 has too high SPL

 
Have you had the chance to test a 60003 against the 22955 and check FR and impedance charts?
 
Also Wiring the CI22955 half tap will lower its spl outpout? 
 

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