Home-Made IEMs
Nov 26, 2023 at 11:02 AM Post #15,632 of 16,100
Any of you guys in Taipei? Would love to meet up and see the crazy iems you made, talk BAs DDs and xover networks :D
 
Nov 26, 2023 at 1:49 PM Post #15,633 of 16,100
It could be the coupler then. Here’s what I would do to check:

1.) Make sure the unity but is tight (no force is needed here, just hand tight).

2.) Try testing the earphone with no eartip but funtak forcing a seal. The measurements will be wrong, but you’ll see if you have a leak.
Heres the collar taken apart:
20231126_104132.jpg


And this is what I tried in order to get a seal, with no result:
20231126_104028.jpg

20231126_104626.jpg

At this point it must be a broken coupler, right?
 
Nov 26, 2023 at 1:55 PM Post #15,634 of 16,100
Heres the collar taken apart:
20231126_104132.jpg

And this is what I tried in order to get a seal, with no result:20231126_104028.jpg
20231126_104626.jpg
At this point it must be a broken coupler, right?

At this point. It’s most likely a leaky coupler or something to do with the mic preamp. What are you connecting the mic to?
 
Nov 26, 2023 at 2:23 PM Post #15,637 of 16,100
Right now I'm connecting it to my desktops internal sound card. Tried using a dongle connector but windows doesn't seem to want to recognize it as a microphone.
The computer is probably not recognizing it correctly. I had the same problem when I first started. I bought a $10-$15 external soundcard that would recognize TRRS.
 
Nov 26, 2023 at 2:31 PM Post #15,638 of 16,100
Question tool to install 1.12 and 1.78 dampers I have 2.08 tool can you use it or is there another way
no tools needed. The 1.12 is primarily used on the driver sound spouts. Then, the tubing is put over them. It will give you a steeper type slope on subs that are a little wild above 1k. The 1.78 were such a huge pain, I will never get them again. The are essentially the cloth inside the metal housing.

Fair warning, the 1.12 while convenient can be super tricky to glue down as the cloth will wick the glue over the sound spout. It wont ruin the driver (Usually) THANK GOD!!! Just keep testing to insure it doesnt get muffled.
 
Nov 26, 2023 at 2:35 PM Post #15,639 of 16,100
The computer is probably not recognizing it correctly. I had the same problem when I first started. I bought a $10-$15 external soundcard that would recognize TRRS.

Yeah, it may not be connected (or powered) correctly.

I’ve found that the machining on the cheap 711s is often fairly decent, but the cheap electret mics they use leave a lot to be desired. I ended up making my own preamp board for it and even then I wasnt satisfied unless making a transfer function type measurement.

There’s a sound card that is sold by that vendor (or one of the other inexpensive 711 vendors) that works fairly well and is only $20 or so.
 
Nov 26, 2023 at 2:39 PM Post #15,640 of 16,100
Is there anyone in the US who could re-install a detached mmcx connector from a Sony IER-Z1R? Seems a bloody shame to trash it.

20230707_105846.jpg
 
Nov 26, 2023 at 3:02 PM Post #15,641 of 16,100
This is one of the reasons I've never bought a Z1R, let me guess, it's disconnected inside and Sony won't repair it? I could have sworn we had this discussion another time in this thread.

EDIT: yeah, it looks like we discussed this previously. I don't know, it still feels like the same problem as before, how are you supposed to get into the shell to do the repaair?

Is there anyone in the US who could re-install a detached mmcx connector from a Sony IER-Z1R? Seems a bloody shame to trash it.

 
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Nov 26, 2023 at 3:04 PM Post #15,642 of 16,100
This is one of the reasons I've never bought a Z1R, let me guess, it's disconnected inside and Sony won't repair it? I could have sworn we had this discussion another time in this thread.
Yes, it's fully disconnected. And yes, Sony will not repair it out of warranty.
 
Nov 26, 2023 at 3:11 PM Post #15,643 of 16,100
That's a huge bummer, I'm sorry your pair had this happen. I'm curious but not enough to mess around with something that isn't mine. How far out can you pull the MMCX connector? Is it possible to unwind and extract it from the shell? based on the shell, it could be soldered to the wires, wound up, and then press-fit from the top.
 
Nov 26, 2023 at 5:24 PM Post #15,645 of 16,100
That's a huge bummer, I'm sorry your pair had this happen. I'm curious but not enough to mess around with something that isn't mine. How far out can you pull the MMCX connector? Is it possible to unwind and extract it from the shell? based on the shell, it could be soldered to the wires, wound up, and then press-fit from the top.
It fully comes out of the shell, no wire. Solder must have broken. It had been replaced before.

If you'd be willing to try and tinker, I'll happily send. The only place I know that will do the work is in the UK. It's a loss at this point.
20231126_141731.jpg

20231126_141854.jpg
 

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