[Wgibson]

If you can make an IEM, you can make an impedance tester. 100ohm resistor and the right connections, not too difficult, very valuable, you can really dial in the zobel if you spend the time, fewer surprises when adjusting crossovers. I did a quick test with driver inside the zobel a few (or more than a few) months ago, haven't used it to make any IEMs yet.



Edit: I am not necessarily suggesting that driver combination, I think it was viable based on individual frequency response curves, but not sure. I just grabbed drivers with resistance/impedance that worked out for the zobel calculation, but stopped there.

 

[stegeoc]

Airbrushing lacquer is quite easy. I use an iwata with a .5 nozzle. Use a low enough air pressure to atomize the liquid. MAKE SURE you use wither a full face respirator. Methacrylate is NO JOKE. Also, be sure you have really good air flow. Never thin with solvents. I would get some disposable pipettes for filling the brush without overuse. Practice on some flat pieces of faceplates, or any spare blanks you might have laying around. I tend to have “unusable” opaque and/or transparent custom shells if I didnt nail the color blend or poured resin without letting de-gas under moderate heat.

Thanks for the tips. Finally had a go at this and like the results, though they weren't perfect. As you can see it has a slightly frosted look (looks more obvious in the pics than in real life) which I think is just down to not rotating them for long enough before curing? Maybe also I had the mix too wet?

 

[dhruvmeena96]

If you can make an IEM, you can make an impedance tester. 100ohm resistor and the right connections, not too difficult, very valuable, you can really dial in the zobel if you spend the time, fewer surprises when adjusting crossovers. I did a quick test with driver inside the zobel a few (or more than a few) months ago, haven't used it to make any IEMs yet.



Edit: I am not necessarily suggesting that driver combination, I think it was viable based on individual frequency response curves, but not sure. I just grabbed drivers with resistance/impedance that worked out for the zobel calculation, but stopped there.

Congratulations for carrying my legacy lmao

I sound like an old man


My suggestion is to understand impedance and learn to implement on crossover

Zobel i did was to teach impedance and speaker kickback and how we can buffer so it resistance in source line like OI doesn't change tonality due to impedance reaction


Andro cable swap guys i am looking at you

 

[Wgibson]

@dhruvmeena96 yes, definitely got the idea from you. I have a lot of different drivers so I will try it at some point.

 

[swtnate]

Thanks for the tips. Finally had a go at this and like the results, though they weren't perfect. As you can see it has a slightly frosted look (looks more obvious in the pics than in real life) which I think is just down to not rotating them for long enough before curing? Maybe also I had the mix too wet?

That is due to either not applying enough lacquer OR your air pressure is a little too high. Buff the surface with like P400 or P600, wipe clean with isopropanol, then re-spray. Like @mattmatt suggested, lightly mist it first then open up your fluid supply a bit more and spray on a coat. It should look wet like a mirror. Then, put it on the turning motor for like 10-15 minutes.

 

[mattmatt]

Thanks for the tips. Finally had a go at this and like the results, though they weren't perfect. As you can see it has a slightly frosted look (looks more obvious in the pics than in real life) which I think is just down to not rotating them for long enough before curing? Maybe also I had the mix too wet?

Not enough fluid sprayed. This would just be my first coat. It seems to me that your pressure is way to high so the lacquer is vaporized before hitting the iems or you have your airbrush way too far.

I actually use fairly low pressure and controlled fluid release and close to the nozzle.

 

[mattmatt]

Not enough fluid sprayed. This would just be my first coat. It seems to me that your pressure is way to high so the lacquer is vaporized before hitting the iems or you have your airbrush way too far.

I actually use fairly low pressure and controlled fluid release and close to the nozzle.

I mean i spray really really close to the iems from the airbrush nozzle.

 

[swtnate]

I mean i spray really really close to the iems from the airbrush nozzle.

Cant be scared! GOTTA GO ALL THE WAY!!! When I see some of fully installed IEMs being DIPPED, I am taken aback….

 

[mattmatt]

Cant be scared! GOTTA GO ALL THE WAY!!! When I see some of fully installed IEMs being DIPPED, I am taken aback….

If you seal the iems properly, you don't have to worry about it. The only problem I can see with that method is when you take the seal off, some of the lacquer will crack along where the seal is.

 

[stegeoc]

Not enough fluid sprayed. This would just be my first coat. It seems to me that your pressure is way to high so the lacquer is vaporized before hitting the iems or you have your airbrush way too far.

I actually use fairly low pressure and controlled fluid release and close to the nozzle.

Thanks @mattmatt @swtnate. It was my first time using an airbrush so I had no idea what to expect. It sounds probable that I was too far away and using too high pressure so I'll try up close with lower pressure next time. Will let you know how it goes. Cheers

 

[mattmatt]

Thanks @mattmatt @swtnate. It was my first time using an airbrush so I had no idea what to expect. It sounds probable that I was too far away and using too high pressure so I'll try up close with lower pressure next time. Will let you know how it goes. Cheers

This is what a properly sprayed one should look like. This is already cured.

If you do a great job with spraying, you won't actually need to rotate it before curing.

 

[swtnate]

This is what a properly sprayed one should look like. This is already cured.

If you do a great job with spraying, you won't actually need to rotate it before curing.

True. I have to let mine turn to some of air out due to like of climate control where Im spraying.

 

[Aldo40]

This is what a properly sprayed one should look like. This is already cured.

If you do a great job with spraying, you won't actually need to rotate it before curing.

excellent results similar to brushing
I gave up the airbrush, I don’t have time to learn how to adjust the gun ;( then I keep my brushing method or I’m used to it

 

[Aldo40]

If you seal the iems properly, you don't have to worry about it. The only problem I can see with that method is when you take the seal off, some of the lacquer will crack along where the seal is.

I solved this problem by holding the intra through the holes of the nozzle, I no longer have concerns about removing varnish at the hole level of the 2 pin connector.

Reshell VE8

https://ibb.co/JB2J12K

https://ibb.co/ZTWYnkS

https://ibb.co/Tc54vCh

 

[slakoth453]

Decided to give the 14mm planar drivers another try, don't think it's gonna get much better than this.

I'll post some more pictures when they are finished.