Home-Made IEMs
Feb 21, 2017 at 7:24 PM Post #6,047 of 16,107
  Would you recommend a single ED or BK for making a single BA universal?

 
Each driver is best to do the first project 
smile.gif

 
 
  What dampers would make the ED sound neutralish and analytical?

 
No dampers.  or try white.
 
Feb 21, 2017 at 8:30 PM Post #6,048 of 16,107
Depends on which ED you use, and no dampers on it probably wouldn't sound too good...
 
Feb 21, 2017 at 8:31 PM Post #6,049 of 16,107
  Well the 30120 would appear to be one.

 
Just realized this has no center tap, was hoping to test out a config I had in mind using the center tap :p 
 
Feb 22, 2017 at 6:29 AM Post #6,052 of 16,107
i feel you my friend. I already asked KA but there's no 3tap version of this driver.

 
Darn. I tried the center tap of the 22955 but it doesn't seem to work too well. I guess I'll have to settle with fiddling around with the 22955 then :frowning2:
 
Feb 22, 2017 at 7:07 AM Post #6,054 of 16,107
 
How do you mean? CI via center tap sounds virtually the same, you just decrease its impedance

 
Was trying to do a similar config to the UERM, using 2 CI22955 through center taps, but as a universal the bass is too tight. I was able to adjust this using 1 CI22955 but with 2, it was more difficult. 
 
Feb 22, 2017 at 10:00 AM Post #6,056 of 16,107
 
Can you add 30120 to GK-31732-000?

I added a CI-30120 to a GK and it is deffinately a "warm" sound :)!  All I did was solder 30120 leads (same polarity) to the GK an added a 4400 ohm damper.  I little muddy but totally works...


Your using 4400 on CI? What dampers are you using on the GK highs and lows. I might build just what you recommended here if you say it improves the GK lows, but remains clear.
 
Feb 23, 2017 at 11:30 PM Post #6,059 of 16,107
 
  I added a CI-30120 to a GK and it is deffinately a "warm" sound :)!  All I did was solder 30120 leads (same polarity) to the GK an added a 4400 ohm damper.  I little muddy but totally works...


Cool! Add some resistor to fix muddiness. 30120 is only 16 ohms.


What resistor would you recommend?
 

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