[Slater]

Hi, this is my full metal shell set based on GQ-30783. Its produce pretty good natural sound but peak at ~5.5khz slightly overwhelming rest of frequency, now tube is 10mm, 2mm id with brown damper 3mm away from driver. What do you think about make tube 2-3mm shorter? Sonion earphone design guide says its should reduce 2nd peak and push it a little to higher frequency. Shorter tube also provide me make driver better glued to shell, now one side of driver is with out glue.

Believe it or not, I’m working on something with that exact shell (just a different color).

I am not sure if I’m going to put the GK-31732 or the GV-32830 in it. I got them both during the 11.11 sale.

I also picked up the SR-32453, but I have that planned for a different IEM.

 

[Lucas Taboada]

I spend hours on searching universal shell which has ability to fit 2 sound tubes in nozle and i don't see any. I even thing about buy kz audio earphones and use it shell.
Link to shell which i use, nozle id is 3.2mm. With agent fee was cost me ~ 25$.
https://item.taobao.com/item.htm?sp...2qCDsO&id=536417055706&ns=1&abbucket=6#detail
To SR driver probably you need something like that.
https://www.aliexpress.com/item/Con...&terminal_id=18ef9049ed3e4c6199cccd4a5c9dad03

Thanks for answering! I've been thinking about using this shell too, it seems good. They hold the mmcx connector well without glue? (just for tuning purposes).
I've found this piece where you cut the shell spout and put the sound tubes inside, but I think it only fits 1.5mm ID: https://item.taobao.com/item.htm?sp...665&pvid=ddb6d383-d95e-4c20-b922-1a07cafe0ed6

About the ring for the SR, that will definitely work!! thank you so much! I just can't find anything like that in taobao, do you know what's the name of it in chinese?

 

[Ivan TT]

I've found this piece where you cut the shell spout and put the sound tubes inside, but I think it only fits 1.5mm ID

 

[Ivan TT]

Link to shell which i use, nozle id is 3.2mm. With agent fee was cost me ~ 25$.

Same, but this one does not have cylinder reatainer for 10mm DD driver, easier to fit BAs IMO
https://item.taobao.com/item.htm?id=575481751486

 

[Slater]

Same, but this one does not have cylinder reatainer for 10mm DD driver, easier to fit BAs IMO
https://item.taobao.com/item.htm?id=575481751486

I wish I had seen those first. I ended up using a Dremel and grinding away the 10mm driver stuff. I also increased the nozzle bore to fit multiple tubes easier.

 

[Xymordos]

Perhaps you could try these universal shells: https://item.taobao.com/item.htm?spm=a1z0d.7625083.1998302264.6.5c5f4e69RfEGXk&id=580307621189

 

[michal1315]

Thanks for answering! I've been thinking about using this shell too, it seems good. They hold the mmcx connector well without glue? (just for tuning purposes).
I've found this piece where you cut the shell spout and put the sound tubes inside, but I think it only fits 1.5mm ID: https://item.taobao.com/item.htm?sp...665&pvid=ddb6d383-d95e-4c20-b922-1a07cafe0ed6

About the ring for the SR, that will definitely work!! thank you so much! I just can't find anything like that in taobao, do you know what's the name of it in chinese?

Mmcx connector holder is make pretty good but in one of my shell it's move back and forward around 1mm when i plug/unplug cable its need considerable force. Then you listening moving is impossible but i use a little of acid free silicone for better holding.

Search for it on taobao 环diy耳机单元扬声器 .

 

[ForceMajeure]

What tools are best for sanding shells before buffing and lacquer? I've sanded by hand and I've used sandpaper mandrels for my Dremel and I'm still having trouble getting into the tight curves and bends of the shell. What grits are recommended? I've been starting at 600 and working up to 2000. My process seems terribly inefficient and I'm hoping there's something I'm missing that could make it easier.

Use this kind of mandrel and cut a 2cm diameter circle of 600 grit sandpaper. make a hole and place it between the 2 washers.(I recommend to cut smaller cicrl and place it under the first one so it gives a bit of mechanical resistance)

Another mandrel that is good to have and use in tighter spaces is a split mandrel like this one

cut a strip of 600 grit and place it in there.

with those 2 you should be good enough to reach most places, no need to go higher than 3000 rpm

No need to sand beyond 600 grit if you use lacquer.

 

[Caluub]

Use this kind of mandrel and cut a 2cm diameter circle of 600 grit sandpaper. make a hole and place it between the 2 washers.(I recommend to cut smaller cicrl and place it under the first one so it gives a bit of mechanical resistance)

Another mandrel that is good to have and use in tighter spaces is a split mandrel like this one

cut a strip of 600 grit and place it in there.

with those 2 you should be good enough to reach most places, no need to go higher than 3000 rpm

No need to sand beyond 600 grit if you use lacquer.

Those are the types of mandrels I have. Thank you!

 

[Shilohsjustice]

Unconventional driver configuration - I have been prototyping and might be onto something that sounds really really good.

I am shocked at the detail and clarity, sounds super crisp as well.

 

[Bassiklee]

Does that one on the left have no spout?

 

[Ivan TT]

Unconventional driver configuration - I have been prototyping and might be onto something that sounds really really good.

I am shocked at the detail and clarity, sounds super crisp as well.

What they?

 

[jambul]

Seem like. Fed and ci and dtec. I doubt the fr still the same once it got in to the shell. I got bwfk and ed and take off the spout.. I like the sound without crossover just arrange in series to level the spl

 

[Shilohsjustice]

Does that one on the left have no spout?

Correct, no spout. ED 30761

 

[Shilohsjustice]

What they?

ED 30761
ED 29689
HODVTEC 31618