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Showing 1 of 15 conversations about:
Newmine R10 TWS Bluetooth 5.0 IEM
TheRequiem
249
May 1, 2020
These are using bellsing drivers, no good.
Alejo1707
332
May 2, 2020
TheRequiemWhat's the problem with that driver?
TheRequiem
249
May 2, 2020
Alejo1707Bellsing drivers are low grade Chinese manufactured balanced armatures. They're great for a cheap DIY project, but for a $200 IEM it doesnt make a lot of sense. For that price you can get way way better sound quality.
jaydunndiddit
3262
May 2, 2020
Alejo1707There is absolutely nothing wrong with Bellsing/Sonion/etc. drivers. They're all equivalent THD % wise but the cheaper BAs may lack certain features a designer/engineer is looking for. Also, Bellsing recruited a TON of engineers from Knowles who have been building their BAs. Hence why the two are in constant legal battles due to IP/copyright. Essentially, they're copying/cloning Knowles 1:1 and selling it at a lower cost which Knowles isn't happy about (rightfully so). Lawsuit is pending so I don't know what the final verdict is.
At the end of the day, it all comes to to how they wire and build the crossover network, sound tubes if any, control resonances with the shell/housing, etc. Creating and tuning any IEM is a serious task and MUCH more complicated than just saying "stick some Knowles in there and you'll have the best sound!" It's pretty amateurish to base a purchase on that fact but manufacturers use it as a marketing ploy to sell more units to the uninitiated.
There is so much info out there for those hobbyists that enjoy building their own sets and experimenting. Same with those who work in the industry kind enough to drop some knowledge to those looking to make their own custom set.
You can read some more here of curious about drivers, crossovers, sound tubes, filters, dampers, resonance, pricing and performance, etc: https://www.reddit.com/r/headphones/comments/3hi0sb/know_your_knowles_a_hitchhikers_guide_to_balanced/?utm_medium=android_app&utm_source=share
And
https://www.reddit.com/r/DIEMs/comments/63178g/estron_drivers/?utm_medium=android_app&utm_source=share
Also, most if not all of the top IEMs and manufacturers use custom made balanced armatures so it makes the brand even more meaningless in the long run. There are plenty of IEMs that use Knowles drivers that sound like dogshit but they'll charge you too dollar because of their use of "premium armatures."
I've only started down the custom route recently myself as we have a new shop with a nice 3D printer and workshop/woodshop, but sourcing what I need (especially during this pandemic) has been a major pain in the butt.
Alejo1707
332
May 2, 2020
jaydunndidditHoly f*k mate, thank you very much for the information and even the links! You really drop the ball with your opinions and facts (I was in the Pandas headphones discussion as well).
Will check all you sent me, I want to eventually get into custom built headphones as well. I have the PortaPros and KSC75 incoming and will start modding them. I've heard that the 25 cents mod is a great way to get more "intimate" sound, but as a result skin flakes and dust can get into the driver, so will try some different kinds of fabric to cover it and see how sound changes.
I know, the CCP virus has indeed messed up international trade, but we can only hope to find a vaccine until the end of this year. Anyway, when you get finally to do those custom casings do ping me, I would love to see what you come up with.
(Edited)
jaydunndiddit
3262
May 3, 2020
Alejo1707Always happy to help, especially to fellow DIY'ers, ha.
I'm actually starting my first project as a pair of headphones as there are quite a few folks making drivers for this sort of thing. This is the one that has my attention the most right now: https://www.reddit.com/r/headphones/comments/fbr49k/my_first_diy_headphones_featuring_handmade_planar/?utm_medium=android_app&utm_source=share
I've been buying old, broken headphones (old DT770 and HiFiMan 400 series for closed and open variants) and using their parts for headband, housings, etc as I'm not trying to reinvent the wheel. I figure once O have the internal baffle and diaphragms designed properly to match whatever driver and electronics I settle on, I can get fancier with nice cups. I like the headband style of both of these already so no need to even bother with something new. The DIY IEM route I'm planning to do after as it's much more involved. I was thinking of doing something with a DD in a wood housing before I even bothered with BAs due to complexity (my soldering skills aren't the best by any stretch, ha).
Either way, it should be fun and I've already learned quite a bit. So that's a plus. Certain manufacturers also make it a bit easier to just buy their drivers outright (like Beyer or Fostex of you have a valid S/N) so you could also stick with a driver that's more well known. Obviously, they're just more expensive. I'd love to transplant some TH900 drivers and tune them to my taste but they're a pain to get unless you have/know someone with a valid serial number for requesting from Fostex. They're a lot more lax on the T50 drivers.
Anyhow, there are already some very good resources since you want to dive in: https://www.head-fi.org/threads/home-made-iems.430688/
And
https://www.head-fi.org/threads/diy-earbuds.822327/
They're big threads so you'll have to sort through a lot to get to the good stuff but it's worth it. That IEM thread is over 11 years old and still active so that should tell ya something 😁
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