Home-Made IEMs
Apr 12, 2012 at 5:59 PM Post #1,216 of 15,989
Can someone comment on TWFK+DTEC vs 2323+2091i from a personal experience (not graphs)?

piotrus-g says 2323 has much better highs (more prominent and less metallic), and that 2091i is better than CI.
MaoDi says even 2015 us better than CI.
 
So is it 2091i > 2015 > DTEC > CI?
 
 
Apr 12, 2012 at 7:51 PM Post #1,217 of 15,989


Quote:
Would anyone happen to have a link to a supplier that would sell to individuals?


As an alternative to acrylic shells I would suggest Radians silicone. Cheap, safe, hypoallergenic. More comfortable and — most important — you can keep the drivers for updates and experiments.
 
Few notes: It won't be fully smooth (as the skin isn't). To make it smooth you can make a mold, smooth it and then use it instead if you find it worth it. You also might want to try pigment as the stock color choices are limited. Also, if you be using connectors, a plastic or acryl insert will obviously be required.
 
 
Apr 13, 2012 at 6:19 AM Post #1,219 of 15,989


Quote:
Can someone comment on TWFK+DTEC vs 2323+2091i from a personal experience (not graphs)?

piotrus-g says 2323 has much better highs (more prominent and less metallic), and that 2091i is better than CI.
MaoDi says even 2015 us better than CI.
 
So is it 2091i > 2015 > DTEC > CI?
 


One thing you should remember is that TWFK is a 2-way driver, the receivers are not identical. That makes TWFK + DTEC a 3 - way system and comparing with 2323 + 2091i (2-way) may not be entirely fair. 
 
I've not listened to Knowles drivers, but have listened a lot to Sonion drivers. And especially 2300, which I like very much. The 2300 in itself has very good high frequency output and can be extended above 15kHz with the right tubing. It has also a warm mid-range. 
2000 receiver is a beast. Big diaphragm, big output and big everything. My experience with this driver is that it is difficult to control. With a 2300/2000 combination you'll want the x-over at mid-range (1000 Hz). You really need some measurement equipment to balance it with a tweeter. It easily can overwhelm the mid-range, making it sound muddy. Personally I would choose 3300 or 3700 (dual-drivers same size as 2000) for subwoofer. 
 
With the 2-way TWFK, the mid-range is already balanced by Knowles. You can boost the Low bass by adding a sub-driver like the DTEC and X-over around 200Hz or whatever you like. You can also make X-over at mid-range 1000Hz, but then you are "wasting" the extra driver in the TWFK.
 
 
Apr 13, 2012 at 6:47 AM Post #1,221 of 15,989


Quote:
Can someone comment on TWFK+DTEC vs 2323+2091i from a personal experience (not graphs)?



 

TWFK+DTEC is used by Westone 4
2323+3300 UE Triple.fi
How they sound depends on x-over tubing design.
smily_headphones1.gif

 
Apr 13, 2012 at 7:03 AM Post #1,222 of 15,989

 
Quote:
 
One thing you should remember is that TWFK is a 2-way driver, the receivers are not identical. That makes TWFK + DTEC a 3 - way system [...]

Even more, since DTEC is a double.
TWFK + DTEC = Westone 4, Heirs 4.A etc.
 
Since Sonion do not retail, I was hoping to hear from someone who tried 23xx + 20xx duo and can compare to the K quad, however unfair it is.
 
Yes, 2323 + 3300 = UE Triple.fi (10 Pro iirc), but 3300 is also a double. 2091i is a single (pretty powerful though) with a different sig.
 
KarmaIncluded,  your info is very very helpful. Huge thanks, especially for all the details.
 
 
 
Apr 13, 2012 at 7:18 AM Post #1,223 of 15,989


Quote:
Originally Posted by piotrus-g /img/forum/go_quote.gif
 
[So is it 2091i > 2015 > DTEC > CI?]
There's no simple answer to this question. It all depends on your application design


Half coil design. Not yet sure where to cut off. Dampers & tubes length — by testing on innocent humans (me).
 
Btw — I've accidently  started a DIY rant, feel free to jump in.  
 
 
Apr 13, 2012 at 9:47 AM Post #1,224 of 15,989
UE TripleFi10 are made for american ears. Which means a lot of High and Lows buy little mid-range. I personally don't like the sound-signature. I'm a very mid-range critical person. The UE for me is too sharp in the highs. The U shape response of these earphones makes them sound very interesting at first. But it not some earphones I could wear for hours. The UE TripleFi10 is just too weird for me.
 
I don't know the X-over of the TripleFi10, but I would guess that the it is at much higher frequency than 1000Hz. For my taste a X-over at 1000-1200Hz with 2300/3300 would be preferable. With these same drivers but different components the sound signature can be significantly different. 1 dB difference in the mid-range can shift the sound from presence and hollow.
 
 
 
Apr 13, 2012 at 5:17 PM Post #1,226 of 15,989
Apr 13, 2012 at 5:37 PM Post #1,227 of 15,989
Quote:
UE TripleFi10 are made for american ears. Which means a lot of High and Lows buy little mid-range. I personally don't like the sound-signature. I'm a very mid-range critical person. The UE for me is too sharp in the highs. The U shape response of these earphones makes them sound very interesting at first. But it not some earphones I could wear for hours. The UE TripleFi10 is just too weird for me.
 
I don't know the X-over of the TripleFi10, but I would guess that the it is at much higher frequency than 1000Hz. For my taste a X-over at 1000-1200Hz with 2300/3300 would be preferable. With these same drivers but different components the sound signature can be significantly different. 1 dB difference in the mid-range can shift the sound from presence and hollow.


What about 4400 and 3300? The 3300 seems to have good response up to 1 kHz, so this combination might be more of an equal-approach counterpoint to the TWFK/DTEC solution.
 
Apr 13, 2012 at 8:20 PM Post #1,229 of 15,989
Quote:
  Last time I checked, the public Sonion graphs were not reliable due their priority & conditions = hearing aid tests. Selecting a driver just from these graphs alone might not be a safe idea.


Well, I also based it on the fact that Suyama FitEar also uses the 33A007 as their midrange drivers for a couple of their designs, such as the C435 and the MH334. According to Jude, the MH334 has probably the most detailed midrange of any custom he has ever used. I'm not sure, but FitEar might be wiring it in series, too.
 
Apr 14, 2012 at 6:19 AM Post #1,230 of 15,989
Ive been thinking that i want to give one of these a go!
 
Is their a nice sorta beginners walkthrough guide to making one anywhere, i think ill start with just a TWFK as i like my DBAs but might add another driver for bass! Depends on how complicated it all looks!
 

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