kingkorg

New-ish electret capsule
« on: November 26, 2020, 01:48:26 PM »
https://a.aliexpress.com/_mKDg9LB

I just wanted to do another heads up on this capsule for couple of reasons.

- It sounds really good, measures great, smooth high end boost, no crazy notch dips, great low end.

- I dare to say it reminds me of a good C12 capsule.

- I have opened one, and it seems to be based on later plastic CK12 type of capsules. Which is a new thing in this price range.

- It can be easily converted into a m50 capsule of 2nd type. Just by removing metal plate at the back, and sealing the vents in plastic backplate. Then obviously placing it inside of a sphere. Yes it is larger than the original, but internal construction is pretty much 1:1 2nd generation of the famous capsule.

- It can be easily re skinned with any material you have available, with no special gear.

- For capsule enthusiasts it can be easily modified and manipulated by adding different spacers, modifying internal chamber by adding or removing matetial ( plastic, epoxy ), changing holes, etc...

- Great for handheld condensers, huge amounts of low end up close.

- By sanding the backplate one can turn it into a non electret, for whatever reason, experiment?

- For this money i don't think there's a better capsule.

« Last Edit: November 26, 2020, 05:04:15 PM by kingkorg »


gyraf

Re: New-ish electret capsule
« Reply #1 on: November 26, 2020, 02:58:33 PM »
Thanks.

I have gotten a handful of them that I sent to evaluation by Tim a while ago, but haven't heard back on them (he's waay too busy)

Any chance you took pics of internals?

Do we know anything about directivity pattern?

/Jakob E.
..note to self: don't let Harman run your company..

kingkorg

Re: New-ish electret capsule
« Reply #2 on: November 26, 2020, 03:11:34 PM »
The disk to the left is the one seen at the back of the capsule assembled.
« Last Edit: November 26, 2020, 05:00:00 PM by kingkorg »

kingkorg

Re: New-ish electret capsule
« Reply #3 on: November 26, 2020, 03:14:31 PM »
I sadly don'y have that precise setup to claim subtle differences between hyper, wide, or regular cardioid, but it is a cardioid.

This plastic backplate holes are sealed by me, i'm building a version of kk50.

kingkorg

Re: New-ish electret capsule
« Reply #4 on: November 26, 2020, 03:29:17 PM »
Backplate, and the chamber is as seen basically the same principle as kk50 v2.

Kk50 chamber seems to be deeper, but that can easily be modded on this capsule. Either by adding a spacer, or by removing excess material.
« Last Edit: November 26, 2020, 04:57:17 PM by kingkorg »

gyraf

Re: New-ish electret capsule
« Reply #5 on: November 26, 2020, 03:34:49 PM »
thanks, very much appreciated..!
..note to self: don't let Harman run your company..

Gus

Re: New-ish electret capsule
« Reply #6 on: November 26, 2020, 03:44:28 PM »
Backplate, and the chamber is as seen basically the same as kk50 v2.

Kk50 chamber seems to be deeper, but that can easily be modded on this capsule. Either by adding a spacer, or by removing excess material.

I wonder if they set the wave washer by the distance it is collapsed or by torque to set the pressure?

kingkorg

Re: New-ish electret capsule
« Reply #7 on: November 26, 2020, 04:54:55 PM »
It's by torque to set the pressure. At least that's what i heard. Nicely documented all three versions on Saturn Sound site.

kingkorg

Re: New-ish electret capsule
« Reply #8 on: November 26, 2020, 05:06:44 PM »
Thanks.

I have gotten a handful of them that I sent to evaluation by Tim a while ago, but haven't heard back on them (he's waay too busy)

/Jakob E.

I'd be very curious to hear from you or Tim about findings if you ever get to play with these.

analogguru

Re: New-ish electret capsule
« Reply #9 on: November 26, 2020, 05:46:14 PM »
....
Any chance you took pics of internals?
.....
Here you go.


The capsule can easily be disassembled with two 1mm drills put into the holes in the ring at the back (shown at the left in the picture) and pliers.  This is recommended for polishing and soldering.
« Last Edit: November 26, 2020, 05:51:09 PM by analogguru »


gyraf

Re: New-ish electret capsule
« Reply #10 on: November 27, 2020, 04:35:31 AM »
thanks!
..note to self: don't let Harman run your company..

Re: New-ish electret capsule
« Reply #11 on: March 20, 2021, 10:42:01 AM »
Thanks Kingkorg,
I bought 4 of these, and installed the first into an at2020.
You need a sharp knife to cut out a larger hole in the rubber.
A very easy swap, and I like how it sounds. A better top end than the original capsule.

kingkorg

Re: New-ish electret capsule
« Reply #12 on: March 20, 2021, 10:49:18 AM »
Great to hear! It should also have better low end.

gyraf

Re: New-ish electret capsule
« Reply #13 on: March 21, 2021, 06:07:44 AM »
Thanks!

..still waiting for feedback on these, will keep you posted..

/Jakob E.
..note to self: don't let Harman run your company..


 

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