Home-Made IEMs
Apr 8, 2021 at 12:55 PM Post #12,541 of 15,967
TL:DR - Please recommend the best sounding driver setup that requires a minimal amount of soldering/setup. My focus is primarily the design/printing side of things but I'd still like them to sound good.

So I just got my impressions with the goal to build my own IEMs. I'm handy with a soldering iron but know next to nothing about driver/crossover science. I currently listen on Tin T2s with custom diy molded tips. To me, the soundstage is very nice (I consistently hear something off to the side in the distance and turn to see what it was only to realize it was something in what's coming through the audio) and I'm hoping to meet or exceed that with my DIEMs. What driver setup should I use? I've found that the Tin T2s seem kind of hard to drive with a FIIO BTR3K and the FIIO UTWS1's. I seem to have to nearly max out the volume to comfortably hear the audio if I'm not in a relatively quiet environment. I'd love for my diy's to be easier to drive so I can use those BT receivers if possible.

I've done some reading but I'm still unclear on what to use and how to connect things (series/parallel etc) so I'd like to find something easy(ish) to install or some write-up of what drivers to use and how to connect them.

I know this information exists somewhere in the 837 pages here but I'd prefer to get these done sooner rather than later after spending the next year reading through all the posts.

Thank you for taking pity on a first time poster here and dropping your knowledge on me!
I'm trying to facilitate a group buy of the Sonion 26-E25WT02 for this, they are pretty much plug and play it seems and already crossed over. Only available directly from Sonion though, MOQ is 25 units.
 
Apr 8, 2021 at 2:51 PM Post #12,543 of 15,967
TL:DR - Please recommend the best sounding driver setup that requires a minimal amount of soldering/setup. My focus is primarily the design/printing side of things but I'd still like them to sound good.

So I just got my impressions with the goal to build my own IEMs. I'm handy with a soldering iron but know next to nothing about driver/crossover science. I currently listen on Tin T2s with custom diy molded tips. To me, the soundstage is very nice (I consistently hear something off to the side in the distance and turn to see what it was only to realize it was something in what's coming through the audio) and I'm hoping to meet or exceed that with my DIEMs. What driver setup should I use? I've found that the Tin T2s seem kind of hard to drive with a FIIO BTR3K and the FIIO UTWS1's. I seem to have to nearly max out the volume to comfortably hear the audio if I'm not in a relatively quiet environment. I'd love for my diy's to be easier to drive so I can use those BT receivers if possible.

I've done some reading but I'm still unclear on what to use and how to connect things (series/parallel etc) so I'd like to find something easy(ish) to install or some write-up of what drivers to use and how to connect them.

I know this information exists somewhere in the 837 pages here but I'd prefer to get these done sooner rather than later after spending the next year reading through all the posts.

Thank you for taking pity on a first time poster here and dropping your knowledge on me!
You could consider a single balanced armature driver, this literally requires a wire on the + and the - :D

Sonion 2354 is a suggestion for a full-range driver
Or Knowles ED29689
 
Apr 8, 2021 at 4:15 PM Post #12,544 of 15,967
How close are you to fulfilling that minimum?
So far no one was interested lmao but I only posted it in this thread yesterday. I'll take 6 myself
 
Apr 9, 2021 at 2:03 AM Post #12,545 of 15,967
Finally got around to posting the new iem I've made - another one based on the UERM. Wanted to improve the treble extension and flatten the impedance while keeping a similar FR. Uses 6 drivers, 2x Mid-Low, 2x High, 2x Super-high. Sounds very flat but the bass doesn't sound as anemic as it looks - bass quantity feels quite decent.

Made with abalone shells and nail art products lol
51105240395_d126b7aa68_k.jpg

51104369533_77e9e07589_k.jpg

Totally stuffed with XO components!
51104231002_a66e6a0fcd_k.jpg

51104369488_c42a7d40df_k.jpg

51104231022_028de192d1_h.jpg

51104209804_668788e54d_k.jpg

51104231017_fbaef88275_h.jpg
 
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Apr 9, 2021 at 4:32 AM Post #12,546 of 15,967
Finally got around to posting the new iem I've made - another one based on the UERM. Wanted to improve the treble extension and flatten the impedance while keeping a similar FR. Uses 6 drivers, 2x Mid-Low, 2x High, 2x Super-high. Sounds very flat but the bass doesn't sound as anemic as it looks - bass quantity feels quite decent.

Made with abalone shells and nail art products lol
51105240395_d126b7aa68_k.jpg

51104369533_77e9e07589_k.jpg

Totally stuffed with XO components!
51104231002_a66e6a0fcd_k.jpg

51104369488_c42a7d40df_k.jpg

51104231022_028de192d1_h.jpg

51104209804_668788e54d_k.jpg

51104231017_fbaef88275_h.jpg
hey bro, that is perfect, I like the faceplate you made !!!!
 
Apr 9, 2021 at 6:34 AM Post #12,547 of 15,967
Finally got around to posting the new iem I've made - another one based on the UERM. Wanted to improve the treble extension and flatten the impedance while keeping a similar FR. Uses 6 drivers, 2x Mid-Low, 2x High, 2x Super-high. Sounds very flat but the bass doesn't sound as anemic as it looks - bass quantity feels quite decent.

Made with abalone shells and nail art products lol
51105240395_d126b7aa68_k.jpg

51104369533_77e9e07589_k.jpg

Totally stuffed with XO components!
51104231002_a66e6a0fcd_k.jpg

51104369488_c42a7d40df_k.jpg

51104231022_028de192d1_h.jpg

51104209804_668788e54d_k.jpg

51104231017_fbaef88275_h.jpg
My god! Those look really hard to make! Are those dual CI and ED? How does it sound? Faceplate looks amazing!!
 
Apr 9, 2021 at 10:11 AM Post #12,548 of 15,967
Finally got around to posting the new iem I've made - another one based on the UERM. Wanted to improve the treble extension and flatten the impedance while keeping a similar FR. Uses 6 drivers, 2x Mid-Low, 2x High, 2x Super-high. Sounds very flat but the bass doesn't sound as anemic as it looks - bass quantity feels quite decent.

Made with abalone shells and nail art products lol
51105240395_d126b7aa68_k.jpg

51104369533_77e9e07589_k.jpg

Totally stuffed with XO components!
51104231002_a66e6a0fcd_k.jpg

51104369488_c42a7d40df_k.jpg

51104231022_028de192d1_h.jpg

51104209804_668788e54d_k.jpg

51104231017_fbaef88275_h.jpg
The faceplate really nice, but the shell transparent look not good in this one because inside look quite jumble. Thanks for sharing.
: )
 
Apr 10, 2021 at 12:09 PM Post #12,552 of 15,967
My god! Those look really hard to make! Are those dual CI and ED? How does it sound? Faceplate looks amazing!!
Thanks! They sound...very flat and clear, similar to the UERM. But the bass is pretty impactful despite it being so flat. Dual CI and ED, but 1Audio drivers since they actually make them into one spout!
The faceplate really nice, but the shell transparent look not good in this one because inside look quite jumble. Thanks for sharing.
: )
Thanks! Unfortunately I don't make shells myself - got them made by someone else so they come in clear every time :p
@Xymordos that's a tight fit, nice work. Are those 1206 size caps? Do they have advantages over 0805 size? And can you give a basic circuit description (what is in series/parallel, zobel on anything?)

Uhh no difference, if I used bigger caps, it was likely mouser priced the 0805 version much higher than the 1206 version. The circuit used a lot of voltage dividers to flatten the impedance, so it ended up being quite hard to drive :p I did zobel the ED, but found that the CI didn't need it. CI is a first order low pass, and ED is a first order high pass, SWFK is a 2nd order high pass. Took around 11 components I believe.
 
Apr 10, 2021 at 11:22 PM Post #12,553 of 15,967
Long time lurker, first time poster (in this thread)
I'm almost finished a new MASM pro build and it sounds great.
I was wondering if anyone has graphed the MASM pro?
If you have or can share it that would be great.
I'll post some pics when im finished buffing it.
Thanks
 
Apr 11, 2021 at 2:51 AM Post #12,554 of 15,967
Thanks! They sound...very flat and clear, similar to the UERM. But the bass is pretty impactful despite it being so flat. Dual CI and ED, but 1Audio drivers since they actually make them into one spout!

Thanks! Unfortunately I don't make shells myself - got them made by someone else so they come in clear every time :p


Uhh no difference, if I used bigger caps, it was likely mouser priced the 0805 version much higher than the 1206 version. The circuit used a lot of voltage dividers to flatten the impedance, so it ended up being quite hard to drive :p I did zobel the ED, but found that the CI didn't need it. CI is a first order low pass, and ED is a first order high pass, SWFK is a 2nd order high pass. Took around 11 components I believe.
Great job none the less! I can't see the SWFK tho! 😂
 
Apr 11, 2021 at 8:43 AM Post #12,555 of 15,967
My order is finally completed and time to start.
The EST65QB02 and the 4x 38D1Xs are completely destroyed from soldering and experiments . 😬
The most drivers came yesterday.
I have 4x 38aj007 , 2x 2389D , 4x 10mm dynamic drivers, 2x DEK-31785, 2x DEB-32257 , 2x DEG-29689 , 2x TWEK-30017 , 2x DWEK-31736 , and all kind of dampers.

What are you thoughts about the LS BAs ?
Has anyone build an iem with those drivers ?

I'm don't really know what to build 😕
Maybe a 16 ba iem per side with 4 way crossover and 4 bores ? Or a hybrid iem ?
The Dynamic drivers are a bit big . It will not be possible to fit 2x DD in one shell.
Any thoughts?
 

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