I forgot about this sony ba I scavenged a while back. It just so happens to extend from 1khz to 9khz without any significant dips. Conveniently its also small enough that I can place it far enough away from the 7mm without sticking to it. Seems pretty promising so far.

Maybe its because I only purchased 2 of each, but luckily, the pair (7mm) I got seem to be fine apart from a slight variance in impedance that probably due to the capacitor that comes soldered with it. It does seem to want to stick to things though. I think Ill try pairing them with the dual rab...

Been off head-fi for a while, but the chinese DD manufacturer huayunxin released some 7mm tweeters for 10khz+ and some 12mm full range drivers. Going to see if i can make something interesting with them. Isolated, the FR seems pretty good so far, though the tweeter might need some tubing for...

single unit of 4 drivers glued together I believe

From my understanding, (which very well could be wrong) apart from phase shifts causes by capacitors and inductors, you can physically shift acoustic phase by changing the tubing length or tubing geometry, with these changes being prominent enough to cause interference. Since different drivers...

Thanks for the response, although not quite I was looking for, I appreciate the advice. I was more concerned about slight differences in acoustic phase making it sound weird. Although I feel like a slight differences in phase wont really be noticeable by the human ear, I don't really have the...

Hello, anyone here have any experience with using different drivers together to cover the same frequency range? For instance, If I use a DWFK and ED or 2389 together, will the mids sound muddy or weird? I've been experimenting with some new build ideas, but I'm not sure if this is something...

I've been experimenting too, and I can't seem to get the front vent to work. I've tried dampening it with different types paper and foam but the bass response doesn't change too much. The back venting did seem to have a noticeable impact on the upper mid range though. No front vent, 1mm back...

The shells I ordered should arrive in a couple days; I can probably test them and post the results within 5-6 days or so.

If you want something to practice with, you can experiment with some DDs. They're much cheaper than BA drivers and they can sound quite good just by themselves too.

The onboard audio for a PC shouldn't give you any issues since the test checks for difference between the generated output and the input after the signal passes through the drivers you're measuring.

Unfortunately I couldn't do any testing yet as I am still waiting for the parts I ordered to arrive. @Wgibson has posted some test results for a 10mm planar on page 795 which might help. I don't see any obvious issues with the shell you've posted, but remember to vent the back volume. You can...

Tuning the planars have been quite painful for me, especially adjusting the bass response. I have to outsource my manufacturing which makes the process excruciatingly slow. I have ordered some custom machines housings with a variety of vent sizes, vent positions and dampening materials. I can...

Anyone tried Pairing a DD subwoofer with a BA one? I feel like it might give it a softer tone while retaining the BA's resolution. I might try something with DD + CI or 38DJ after this planar build.

The diameter is not entirely uniform but the widest part is 14.3mm Height is 4mm excluding the solder pads the distance from the edge of the metal grid to the edge of the housing is 1mm All measurements +-0.1mm

I received some 14mm Planars I ordered from taobao recently, here are the measurements: Closed back: Open Back: Closing it off seems pretty nice for a 3 way config as the woofer. Might try something with either the twfk or 2389D + swfk. I havent listened to them yet though, Might need to 3d...

Hello, I am trying to make some IEMs with dynamic drivers for the first time and I am a bit overwhelmed with the increased complexity that comes with tuning them. Can someone give me a general rundown of how different tuning methods (Size of back volume and front volume, venting the back volume...

Biocompatible UV resin/lacquers are usually for medical use and are pretty expensive. If you really can't get any for a reasonable price, It might be cheaper to get someone to print some shells for you with a resin 3d printer using biocompatible resin.

Time to start a company

Maybe try contacting customer support? It seems to be sold out on aliexpress.

https://otoplastikshop.dreve.de/otoplastiken/fotoplastr-lacquer-3-4257.html

The SWFK measurement currently is practically a placeholder measured with a 10mm tube and no dampening. Even with the tweeter removed, there is still a 4dp bulge that I am trying to get rid of. I can't really tell what's causing it, but I think it might be something with the measurement setup...

Yes, both graphs include all drivers. I think I'll try wiring them in series first, then experiment with tube sizes a bit and see how that goes. If neither work, I'll order some higher value dampeners.

If I remember correctly, the blessing2s have a red filter right next to the nozzle of its swfk, I might try that out and see how it goes.

I haven't decided yet, I've just been trying to get rid of the issues with the 2389D. I think I'll just put a brown or green dampener on it to smooth it out a bit. The current measurement is just a swfk with a 10mm ID 1.5mm tube.