[Dan Jarros]

It's acrylic so it's good to go. Acrylic is inert to skin.

 

[audiofreakie]

Need info.
if we buy balance armature driver from mouser. They sell per pieces ( quantity 1 piece only) or a pair ( quantity 2 pieces)?

thank you.

 

[MuZo2]

 
It is one piece, not a pair.

 

[audiofreakie]

MuZo2, thank you (y)

 

[tsn141]

.

 

[MIke M]

Tungsten tooth carbide

 

[Dan Jarros]

  OK. I've completed another set of CIEMs. Basically they are clear acrylic shells with Astrotec AX35 monitors in them. If you didn't know, the Astrotecs are affordable ($70) hybrid monitors with a dynamic speaker for the low spectrum and a balanced armature for the highs. Sound-wise, they are much better than my Sennheiser IE-4 and my Knowles dual driver designs. The Astrotecs are physically a bit large in the shell but I made it work. The dynamic speaker is much more suited for the lows and it really shines in the CIEM shells.
  So I did some experimenting with the different UV acrylics I've used and here's my verdict. The $5 nail salon stuff from Ebay looks, smells, flows, and cures just like the expensive Loctite stuff. That's what I'll use from now on. So total cost of the best CIEMs I have; less than $80.

 

[MuZo2]

Cool, more pictures please. Do you know what drivers from knowles was in Astrotec ?

 

[tomscy2000]

  Cool, more pictures please. Do you know what drivers from knowles was in Astrotec ?

 
Astrotec officials say the AX-35 uses the ED-29689...

 

[MuZo2]

Oh then its a steal at that price.

 

[Dan Jarros]

It's a good thing they didn't use the ED-209 drivers.

 

[MuZo2]

 
 
 

Did you put the whole iem inside ?

 

[Dan Jarros]

Yes. 4mm-2mm shrink tubing in place of the rubber earpieces.

 

[wz2000]

 
After a long time in development, my latest IEMs are done.
 
5 drivers per ear (CI,DTEC and TWFK), with an external battery powered, 3-way, 4th order active crossover system feeding them. Simply amazing sound, easily rivals some of my high quality full sized cans.

 

[MuZo2]

Great work!!! did you design the crossover your self or is off shelf.