mattrva
New Head-Fier
Does anyone happen to know or have a link to what driver is used in the CCA CRA?
I have ruined few drivers due to poor soldering skillsI finally started to build my own iemsss..
1) RAB-32257
Surprisingly good sounding driver. I soldered it without any resistors. Sound so good without dampers, will try to wire up with 1-5R resistors to see if there are any sound different. I found it works good with white and brown dampers, when I installed Green dampers, it sounds like westone
2) Rab-32257 as full range, 29689 with only 1.5-3.3 cap (proposed)
Have read ppl suggested 32257 + 30095. I still want to try the combination with 29689. Maybe need to add a resistor on 29689.
3) Dual Ci-22955 + 30017
22955 in parallel with 5.1R should be good. I am also thinking of wire up the CI with 5.1R and the second ci with 10R. But I am quite confused with 30017 maybe connect a 0.47-1.5uf cap according to suggestions from previous post.
Soldering is so difficult
Should I just buy myself a artificial ear?
Time to practice again bruvI have ruined few drivers due to poor soldering skills
And my rab+ed combination seemed not working too. When the drivers work tgt in parallel they sound ok. I have tried to wire only the ed + 3.3uf in series, the volume is low. Dont Know if it is correct....
Thanks for the support!Time to practice again bruv
Also never solder components directly on driver but on wire so you can fix it later
Updates.Thanks for the support!
I use rab as full range. ED tab center + cab. Does +/- on rab need to be reversed?
Good NightUpdates.
I spend few hours to make one side of my rab + 29689 combination.
Rab+/-reverse + red damper
29689 + 3.3uf cap + green damper.
it works finally. Last time i wire them with normal polarities rab got no sound.
i think rab with green damper + 29689 with withe might be also good as well but i could have ruined the wiring when changing dampera haha.
Photos will be posted after finishing a pair of it.
Cheers!
The issue you are describing is not a problem cause by the 38. Its inherent to the GU / GV. If you want that extended high end shelf, you will also beed to add a single driver super tweeter or an swfk. Also, the GU / GV series intention of design was to be plug and play. So, in the future, imo, youd be better served ordering those drivers independently.Hi there hello,
I am new here, been for a while as a reader and student, going through all the posts here. I wanted to start my personal iem for concerts. Anyways, I did my molds and 3d prints for shells and there is everything working fine. The problem I’ve got is to combine BA’s.
I’ve got setup with the Sonion 38AJ007 for bass with Yellow damper, mid and high is Knowles Gu32829 with white damper and tubing is 2x1,5 (inner)
The problem I’ve got is that I couldn’t make a proper Lo-Pass cause adding a cap in parallel on 38AJ007 affected also high end on Knowles. I’ve decided to kill the high end with the dumper on Sonion instead putting a cap. After all sound of this setup is missing high end, rolloff on 10Khz. Do you have any idea to tune this setup? Or does anyone have a good setup for BA’s like
Sonion 38Aj007; 2389D; e50dt; 37AJ007; 37Ap007.
I am slowly losing the faith for building something working and sounding at least good. The setup I described Sonion+Knowles is midrangy as heck. Snare is beating my brain if you could show me the direction I’d be grateful.