[HaBo]

How to tune a full-range single BA driver ?

 

[Jerry-S]

Hey there, I really like your shells. I also had problems to get a good finish on my faceplate and found a neat solution named foil flakes. At first I was struggling to apply them properly but had an idea that helped a lot. Apply something like isopropyl alcohol onto the shell and then apply the foil and then brush it to get a nice smooth flat finish.
I found that easier than painting because I'm no artist. ^^
Here is a photo of my MASM3's, the black side of the foil turned out to be blue, which you can see on the right IEM. Depending on the incidence of light you can see it as a dark blue and it looks fantastic combined with black and gold.


The shells I use atm are the standard 3D printed ones from SoundLink. In the future I want to print them by myself with a 3D scan of my ears but for now they have to do.

Looks great!
That combo of black with gold flakes is a great look. No wonder its used a lot. ( UM MEST, Softears RSV, Mangird Tea........)
What shell did you use for the mold?

 

[Theodoric Paddlefoot]

Looks great!
That combo of black with gold flakes is a great look. No wonder its used a lot. ( UM MEST, Softears RSV, Mangird Tea........)
What shell did you use for the mold?

Thanks!
I'm not making my own shells yet. The shells are from SoundLink on Aliexpress.
Here my Finale 2 which I finished yesterday. These are my 3rd IEMs and the finish is still far from perfect but a lot better than my first try.

 

[kkugel]

Anyone interested in some 12mm planar drivers with good frequency response? I need 4, but they give a big quantity discount for 12 pcs. I saw planar drivers are usually 99$ on ali, my high quality source would be 23$ for one.

 

[dhruvmeena96]

Thanks!
I'm not making my own shells yet. The shells are from SoundLink on Aliexpress.
Here my Finale 2 which I finished yesterday. These are my 3rd IEMs and the finish is still far from perfect but a lot better than my first try.

Graph it please if you hsing IEC711
I lost my old graphs

 

[Theodoric Paddlefoot]

Graph it please if you hsing IEC711
I lost my old graphs

Here you go

--edit-- I finally got my measurement rig working and updated the Finale 2 graph.

 

[kkugel]

Here you go

You have the Apple Dongle yet? Looks like soundcard bass dropoff still Here it's available in every gas station actually

 

[Theodoric Paddlefoot]

You have the Apple Dongle yet? Looks like soundcard bass dropoff still Here it's available in every gas station actually

Yes I'm actually using the Apple dongle as output. I tried using a splitter to get it to also accept the microphone but that didn't work. Maybe it's the mic in from my usb soundcard?
But shouldn't the Finale 2 drop off slightly below 50Hz anyway?
And btw. if anyone is thinking of building a Finale 2 and is unsure yet: Do it. I'm amazed by that build and can't stop listening to music.

 

[kkugel]

Yes I'm actually using the Apple dongle as output. I tried using a splitter to get it to also accept the microphone but that didn't work. Maybe it's the mic in from my usb soundcard?
But shouldn't the Finale 2 drop off slightly below 50Hz anyway?

Oh yes that's it lol. You need to use the Apple dongle as mic input! The drop off happens in the input, not output. I can send you the splitter that works for me, maybe you can find the same product as on ali on amazon.

 

[Theodoric Paddlefoot]

Oh yes that's it lol. You need to use the Apple dongle as mic input! The drop off happens in the input, not output. I can send you the splitter that works for me, maybe you can find the same product as on ali on amazon.

Oh yes please give me a link then. I'd be so happy when I can actually believe 100% what I'm measuring!

--edit-- I think I got it. Idk what went wrong the last time but this is with the Apple dongle as mic:
--edit2-- It was still wrong. ^^ I've attached the final measurement as 2nd picture.

Thanks a lot kkugel for pointing me in the right direction!

 

[kkugel]

Oh yes please give me a link then. I'd be so happy when I can actually believe 100% what I'm measuring!

--edit-- I think I got it. Idk what went wrong the last time but this is with the Apple dongle as mic:

Thanks a lot kkugel for pointing me in the right direction!

That looks correct! Sometimes you need to push plugs into these splitters with force. However, you might want to try crossing the bass lower, at 300. 500 is very high and will give you bloated sound

 

[kkugel]

Also really no one wants some planar drivers? I'll 3D print you guys shells, c'mon guys I don't wanna spend 100$ for 2 drivers hahaha

 

[dhruvmeena96]

But my question is
Why is treble rolling of
@Theodoric Paddlefoot

Finale 2 is good(now a very old design though)
Ferrofluid BA sound very different from normal BA's
And damperless, it should sound really good to anyone who tries it
The only thing is that it was made simple for DIY purposes so everyone can make it(ease of build had more priority compared fo Frequency response)

 

[saldsald]

I've got tubes from SoundLink and use a cheap heat gun with with temperature regulation. 130°C-140°C works best for me, just put tweezers in the tube and rotate it ~5cm above the gun, and the force from the tweezers will stretch the tubes automatically. I was just doing that so I made a few photos. ^^

I have finally bought myself some large diameter heat shrink tubes and they should surely work. Thanks for the guide, I think I will also need a cheap heat gun as the lighter is leaving some nasty burnt fuel marks on the tube and a hairdryer doesn't work, lol.

Edit: actually a hairdryer is hot enough, using 1600W

 

[Wgibson]

Small candle if you need slow gentle heat over a long period of time, like the ones you put in a pumpkin for halloween