Home-Made IEMs
post-15923745
Post #11,731 of 11,769

johnchpark

Head-Fier
Joined
Feb 8, 2019
Messages
68
Reaction score
77
Location
South Korea
Joined
Feb 8, 2019
Location
South Korea
Posts
68
Likes
77
This is the left side before closing the shell (green) and after (purple). Makes me think when i pushed the components in, some passives ended up touching

UPDATE
went in and realized one of the fullrange drivers got unhooked.
Fixed.
Blue line is CIEM form and green is UIEM (subbass roll off due to fit)
 

Attachments

Last edited:
     Share This Post       
post-15924402
Post #11,732 of 11,769

JEHL

100+ Head-Fier
Joined
Apr 16, 2020
Messages
494
Reaction score
307
Location
Tegucigalpa, Honduras
Joined
Apr 16, 2020
Location
Tegucigalpa, Honduras
Posts
494
Likes
307
Age
29
     Share This Post       
post-15924440
Post #11,733 of 11,769

duo8

100+ Head-Fier
Joined
Mar 25, 2015
Messages
307
Reaction score
82
Joined
Mar 25, 2015
Posts
307
Likes
82
     Share This Post       
post-15924699
Post #11,736 of 11,769

JEHL

100+ Head-Fier
Joined
Apr 16, 2020
Messages
494
Reaction score
307
Location
Tegucigalpa, Honduras
Joined
Apr 16, 2020
Location
Tegucigalpa, Honduras
Posts
494
Likes
307
Age
29
Right from the link you posted. Yes, it's a BA
I mean I know it's made by Knowles. I know it says Balanced Armature in the spec sheet.

Is just the shape that throws me off since It seems to be one of a kind of sorts.

Claims full range but apparently another spec sheet shows quite a bit of a distortion spike at 2kHz, so I'd imagine this would make a good woofer?
 
     Share This Post       
post-15926235
Post #11,738 of 11,769

gregeagle

New Head-Fier
Joined
Jun 20, 2019
Messages
16
Reaction score
15
Location
Austria
Joined
Jun 20, 2019
Location
Austria
Posts
16
Likes
15
Hi,
What are some options to add color to clear UV resin?
I'm using Egger clear, and Egger UV lacquer.
Maybe mixing nail polish into the liquid resin?
thanks
your best bet would be resin Obsession or Daler-Rowney Acryl ink.....they both work pretty good! i would definately would not use nail polish...
 
     Share This Post       
  • Like
Reactions: Bassiklee
post-15930089
Post #11,739 of 11,769

johnchpark

Head-Fier
Joined
Feb 8, 2019
Messages
68
Reaction score
77
Location
South Korea
Joined
Feb 8, 2019
Location
South Korea
Posts
68
Likes
77
thanks!

so do you mix the acryl ink with the liquid resin before casting, or do you paint over the hardened resin before lacquering?

your best bet would be resin Obsession or Daler-Rowney Acryl ink.....they both work pretty good! i would definately would not use nail polish...
 
     Share This Post       
post-15930120
Post #11,741 of 11,769

gregeagle

New Head-Fier
Joined
Jun 20, 2019
Messages
16
Reaction score
15
Location
Austria
Joined
Jun 20, 2019
Location
Austria
Posts
16
Likes
15
thanks!

so do you mix the acryl ink with the liquid resin before casting, or do you paint over the hardened resin before lacquering?
after mixing colour to resin.. let it sit for a while so the bubbles who apeared during mixing remove!! but be aware...if you wait to long the color might sit back to the bottom!
then do the casting shells...
 
     Share This Post       
  • Like
Reactions: johnchpark
post-15930200
Post #11,742 of 11,769

johnchpark

Head-Fier
Joined
Feb 8, 2019
Messages
68
Reaction score
77
Location
South Korea
Joined
Feb 8, 2019
Location
South Korea
Posts
68
Likes
77
Thank you!
Just ordered a few Daler-Rowney FW Pearlescent acryl inks.
Seems like 1 part ink to 10 part resin’s what ppl use?
Does it come out as solid color or translucent?

after mixing colour to resin.. let it sit for a while so the bubbles who apeared during mixing remove!! but be aware...if you wait to long the color might sit back to the bottom!
then do the casting shells...
 
     Share This Post       
post-15930467
Post #11,743 of 11,769

Bassiklee

100+ Head-Fier
Joined
Jun 27, 2017
Messages
176
Reaction score
80
Location
Florida
Joined
Jun 27, 2017
Location
Florida
Posts
176
Likes
80
If your ink is an opaque, it will either not work, or take a long long time to form a shell. I have a LED box with eight LED bars in it. It's WAY too strong. I can form shells in 12 seconds with clear resin. Using black, it's 20 min, and black resin is still translucent, barely.

You will have much better luck with translucent inks than with opaque stuff.
 
     Share This Post       
post-15930487
Post #11,744 of 11,769

musmecca

Head-Fier
Joined
Jun 1, 2020
Messages
57
Reaction score
26
Location
Memphis, Tn
Joined
Jun 1, 2020
Location
Memphis, Tn
Posts
57
Likes
26
If your ink is an opaque, it will either not work, or take a long long time to form a shell. I have a LED box with eight LED bars in it. It's WAY too strong. I can form shells in 12 seconds with clear resin. Using black, it's 20 min, and black resin is still translucent, barely.

You will have much better luck with translucent inks than with opaque stuff.
I second this. I usually just do clear or lightly tinted shells then treat the inside of the shell for the desired effect. These purple ones were clear. I simply used metallic nail polish to cost the inside, then floated polish in water to get to the spots a brush couldn't reach.
 

Attachments

     Share This Post       
post-15937651
Post #11,745 of 11,769

HenacanPodwell

New Head-Fier
Joined
Oct 9, 2018
Messages
25
Reaction score
3
Location
Malaysia
Joined
Oct 9, 2018
Location
Malaysia
Posts
25
Likes
3
Hello everyone, I have been trying to figure out how to do a low pass RC filter but I just couldn't even after days of trying and reading, maybe I am just dumb.
So I tried to do cutoff frequency at around 800 hz at 22955. Which I used 20 ohm connected series to the 2 pin, and then parallel 10uf.
Can someone helps pointing out my mistake?
Thank you!

Edit: Solved
 
Last edited:
     Share This Post       

Users Who Are Viewing This Thread (Users: 2, Guests: 4)

Top