Home-Made IEMs
Feb 24, 2018 at 3:56 AM Post #7,337 of 15,989
TF10 would be a more V shape sound than the GV setup. A thing to consider going wireless is making sure you have an output impedance of ~< 1 ohm from the wireless module. if not it will most probably skew the sound not in a good way...
 
Feb 24, 2018 at 5:16 AM Post #7,338 of 15,989
TF10 would be a more V shape sound than the GV setup. A thing to consider going wireless is making sure you have an output impedance of ~< 1 ohm from the wireless module. if not it will most probably skew the sound not in a good way...


I’m looking into wireless myself, are we talking completely wireless or a Bluetooth cable? I’m working with another engineer to develop a circuit board with a new 5mm chip to go completely wireless with virtually no delay. It will hit a great target market that wants these for workouts and such. The plan is to also make them capable of accepting a standard cable when the highest possible audio quality is desired. I may have missed something on here though. Has someone else been successful with complete wireless? I’m not talking the Bluetooth cable that lays along the back of the neck.
 
Feb 25, 2018 at 4:06 AM Post #7,340 of 15,989
well there are already made soc with complete solutions from various chip manufacturers that even include active noise canceling and what not. basically every wireless iem (even the ones with with no cable) use those beside the airpords that have their own chips.
 
Last edited:
Mar 6, 2018 at 4:51 AM Post #7,342 of 15,989
I finished another pair. I'm happy with the sound, fit and look. However, as always, I lack 10-13 kHz. Maybe next time =)
Two way, two drivers.
0.68 uF cap for ED.
4.75 Ohm res for CI.
18 mm tubes. 2 mm ID, 3 mm OD.
Dampers - 5 mm for green (ED), 7 mm for red (CI).
2018-03-06 12.18.10.JPG 2018-02-24 10.32.24.JPG Screen Shot 2018-03-06 at 12.15.18.png
 
Mar 8, 2018 at 6:15 AM Post #7,343 of 15,989
I finished another pair. I'm happy with the sound, fit and look. However, as always, I lack 10-13 kHz. Maybe next time =)
Two way, two drivers.
0.68 uF cap for ED.
4.75 Ohm res for CI.
18 mm tubes. 2 mm ID, 3 mm OD.
Dampers - 5 mm for green (ED), 7 mm for red (CI).
These look just plain gorgeous!!! ;P
 
Mar 8, 2018 at 6:41 AM Post #7,344 of 15,989
Mar 8, 2018 at 11:22 AM Post #7,345 of 15,989
Mar 10, 2018 at 3:26 AM Post #7,347 of 15,989
I finished another pair. I'm happy with the sound, fit and look. However, as always, I lack 10-13 kHz. Maybe next time =)
Two way, two drivers.
0.68 uF cap for ED.
4.75 Ohm res for CI.
18 mm tubes. 2 mm ID, 3 mm OD.
Dampers - 5 mm for green (ED), 7 mm for red (CI).


very nice. where did you get those sockets? they look cool.
 
Mar 10, 2018 at 3:28 AM Post #7,348 of 15,989
Hi all, I am into my first DIY IEM project using Knowles BA drivers and need to glue shell pieces together. Knowles advises that some glues are not compatible with their drivers since components of outgassing can diffuse into drivers and damage them permanently. My inquiry at Knowles which glues are recommended has led to nowhere. Anyone has a recommendation for fast curing glue that does not need UV, heat to cure?
 
Mar 10, 2018 at 10:16 AM Post #7,349 of 15,989
If you remember me, I wanted to make some really complex IEMs. I designed a crossover on a PCB and it has been manufactured through PCBWay. It has to arrive this following week. All the SMD components are here and the last thing I have to receive is the stuff from Taobao (BA, Dynamic drivers, shells, silver mmcx, braided silver cables and more).
Building IEMs is very exciting and fun. I hope everything turns out well ^^

Anyone knows a cheap and easy solution to measure IEM frequency response?
 
Mar 10, 2018 at 12:19 PM Post #7,350 of 15,989
very nice. where did you get those sockets? they look cool.
AliExpress, Soundlink Shop.

Guys, the next project I would like to implement is 6BA IEM. There is still no access to Sonion, so Knowles is my choice. I have a pair of DTEC and I think I'll add HODVTEC for LF and SWFK for HF. Some manufacturers use this combination. I'll play with RC and dampers. Looking ahead I will say that I do not want to use TWFK for this setup. What do you think, will there be anything good out of this?
 

Users who are viewing this thread

Back
Top