[BobbyKa]

Good luck, GV sounds great and is easy to use. I'll have a go at answering these but I'm still a beginner so others will know better.

1. I just used cheap local paraffin wax, I can't imagine it makes a huge difference. You'll be sanding it down later anyway.
2. I had 2 open and 2 closed I think. You can measure/listen and adjust to taste before you close it up
3. I used 2mm ID tubes. I would imagine you'd lose some treble if you used 1mm ID tubing for the tweeter. Maybe that is desirable to some. With 2mm ID tubing all the way you'll have more options for damper placement
4. I don't think wires will make much difference, if you're going to be able to see them then take that into account
5. I had no problem using normal resin dyes. Of course exposure times will vary so you'll need to experiment.
6. Not tried flakes but added some black mica for one pair. Don't recall having any problems with exposing it and the specs do hide any imperfections/bubbles quite well as a bonus. I'd say you should be fine with flakes, unless you go over the top

Thank you for helping!

So i will order 1 and 2mm ID tubes and try to use only the 2mm ones. hope to have enough space at the end of the shell
Also I am going to order a Dayton iMM-6 for measuring. Didn't plan that before.

 

[Wgibson]

Get as many kinds of tube as possible. If you are ordering frome some place with tubing, grab some. They all have different kink resistance, stretch differently, nest together in a nozzle differently. Changing tube size can help deal with driver peaks.

 

[stegeoc]

I *think* that sharp bends acts as a damper.

Yes, this seems to have been the case. I created a new shell with an exact duplicate tube (from the other side) and the problem went away. The oddity was seen even with only the main 1723 driver in the circuit which ruled out polarity or crossover differences. It wasn't massive, maybe -3db or so, but enough to stop it matching nicely.

I am recycling the drivers from the first iem I built and adding the vented DDs as discussed recently. The BA was buried up to its head so was difficult to remove but I broke the shell around it bit by bit and got to it safely in the end. I've started fixing drivers in with resin rather than glue and that really helps when it comes to getting them out.

I put the curves in the tubes as there wasn't enough room for the length I wanted otherwise. I wasn't expecting an effect on the sound but I guess the sharp bend did introduce some unpredictable reflections. Anyway, all good now I think. Cheers

 

[stegeoc]

Thank you for helping!

So i will order 1 and 2mm ID tubes and try to use only the 2mm ones. hope to have enough space at the end of the shell
Also I am going to order a Dayton iMM-6 for measuring. Didn't plan that before.

Remember that if you use 2mm ID tubes, you can always slip some short pieces of that 1mm ID tubing into the canal and see if you like it. It can definitely tame peaks but I don't think the GV is particularly peaky

 

[mt877]

Has anyone built a good set of bullet IEMs? Just trying to have some DIY fun and I'd like to put a couple my used 9mm casings to good use.
I did the usual google search and there's a couple of old build instructions, but I think the recommended drivers aren't even available anymore.
Any guidance and currently available BOM is appreciated. Thanks!

 

[559060]

What kind of resistor and capacitor would be suitable? Looking on digikey mainly.

 

[BobbyKa]

At the moment, there are two things i am unsure with:

1. Most CIEM I see dont have ear wax filters at the end of the tube. I see that the place there might often be to small for filters on all tubes. But how do you deal with it? i guess the dampers are too deep inside the tube to reach all the way with a normal cleaning stick. how do you deal with it? isn't it a big problem? some friends have often ear wax in their shure se iems.

2. maybe a silly question, but i haven't seen or read it yet: how to make letters or logos in the faceplate? printing on foil, cut out, put on faceplate and fill with lack 3? cut with vinyl cutter? or make a template (e.g. with vinyl cutter), fill with colour, remove template, finish with laque?

 

[tonybuild]

Hi,have question.

I never used Sonion 38AJ007Mi/8a.
Because i dont know how to make crossover with it . Still kinda new guy in all this stuff.
Please if any one can give me good advice how to make crossover ill be grateful

 

[dhruvmeena96]

Hi,have question.

I never used Sonion 38AJ007Mi/8a.
Because i dont know how to make crossover with it . Still kinda new guy in all this stuff.
Please if any one can give me good advice how to make crossover ill be grateful

D1XJ is better

 

[tonybuild]

D1XJ is better

Why is better?
Can you please tell me how to wire this driver?
Thank you

 

[dhruvmeena96]

Why is better?
Can you please tell me how to wire this driver?
Thank you

It has accupass which makes it roll off like subwoofer
And pretty hard...

But never avoid electrical crossover....

To wire it
https://www.sonion.com/product/38d1xj007mi-8a/

Download pdf

 

[swtnate]

Hi,have question.

I never used Sonion 38AJ007Mi/8a.
Because i dont know how to make crossover with it . Still kinda new guy in all this stuff.
Please if any one can give me good advice how to make crossover ill be grateful

Can’t really offer a crossover point unless you/ we know what drivers it is being paired with.

 

[YungOmbat]

Has anyone built a good set of bullet IEMs? Just trying to have some DIY fun and I'd like to put a couple my used 9mm casings to good use.
I did the usual google search and there's a couple of old build instructions, but I think the recommended drivers aren't even available anymore.
Any guidance and currently available BOM is appreciated. Thanks!

lol imagine that being a new iem trend. NEWLY MADE BULLET IEMS WOW WHAT A REVOLUTION LMAO

 

[mt877]

lol imagine that being a new iem trend. NEWLY MADE BULLET IEMS WOW WHAT A REVOLUTION LMAO

It is an old trend. There were a couple of companies that sold them. From what I could tell sound was not that good. I thought it would be interesting to try making a few that might sound good if tuned well. Actually there are many 'bullet' shape IEM on the market, they are not made from real bullet cases of course, just the general shape. One example is Intime IEM. They are made in Japan and have piezo and DD drivers and have very good sound. Anyway, I found a few more resources that have some build information that could help me to have some fun with this.

Edit: Here's another example of a well regarded 'bullet' shape IEM: Technics EAH-TZ700

 

[kha1id]

Does anybody tried to use HODVTEC/33AJ007i/9 like two independent driver? Is it an efficient setting like what they perform in parallel?