musmecca
100+ Head-Fier
Out of curiosity, what diameter tube are you using? You can increase bass response/limit HF by going to a smaller diameter...say 1MM or 1.5M vs the 2MM standard.
Home-Made IEMs
- Thread starter Bilavideo
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HenacanPodwell
New Head-Fier
I am using 1.2mm for 22955, and a short 2mm in the middle for the damper to sit on.
I was thinking of even longer tube (3 cm) but it mess up the phase
Farquarl
100+ Head-Fier
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The Wavelength of 150Hz for example is 228cm don´t worry about tube lengthI am using 1.2mm for 22955, and a short 2mm in the middle for the damper to sit on.
I was thinking of even longer tube (3 cm) but it mess up the phase
HenacanPodwell
New Head-Fier
What does this means? I am confused. Does that means that using a longer tube for bass driver shouldn't affect the phase?The Wavelength of 150Hz for example is 228cm don´t worry about tube length
Farquarl
100+ Head-Fier
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Well it does effect phase, it just doesn´t effect it very much. Imagine a sine wave at 150Hz. You want to avoid that the peak of one driver and the valley of another driver overlap and create interference cancellaction. Lets say each driver puts out its signal in perfect phase aligment just the tube length will differ. In order to create total interferance cancellation you would have to attach a tube of half of the wavelength so in this case around 114cm. What i want to say is that the longer the wavelength is the more negligible the tube length becomes for phase aligment.
HenacanPodwell
New Head-Fier
I see! Besides phase cancellation, what else does a good phase alignment do? I see big company like JH always make sure their phase alignments are close to perfect, even to the point of not caring much about the tube resonance(tweeter having 2 times the length of woofer).
Farquarl
100+ Head-Fier
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Nothing really, good phase aligment does exactly that: Avoiding cancellation...
HenacanPodwell
New Head-Fier
I see! Thank you very much!
dhruvmeena96
Headphoneus Supremus
@foxfoxfox do ask any question. Would be glad to help you out
You have been liking my post which feels weird. Hahahhahahaha
You have been liking my post which feels weird. Hahahhahahaha
MISHKA2020
New Head-Fier
Woow , this looks perfect ! Can you tell me some tutorial how to make that perfect, rounded and smooth end of tubes? This is so perfect that you can't even see the end of the tube. I thought it was a 3D printAnyway, here's another build. Hope you guys also posts photos of your recent builds!
foxfoxfox
New Head-Fier
Hello Mr. dhruvmeena96,
Haha cool that you're wondering
The reason is:
My Knowles GV bass driver dies after few minutes of music, but recovers after few minutes of no music.
Similar problem to eunice.
Did anyone find an explanation for dying Knowles GV bass?
In this forum, you mentioned some reasons for that GV bass death (e.g., pressurization issues), which i liked.
(I also liked posts where something is summarized up or explained for noobs.)
Therefore I'm looking for new recipes (mainly from your kitchen
).I plan to build Finale 2.
And maybe use a different HODVTEC of the broken GV.
Has anyone tried something with Knowles GU? With added tweeter for > 4kHz?
HenacanPodwell
New Head-Fier
Hello everyone, anyone know where I can find sonion e25 series of super tweeter?
I searched everywhere but I couldn't find one, the only one on taobao has only a stock.
Reason I am looking for it is because it is arguably best super tweeter(?), and i really like sonion's sound when compared to knowles.
I searched everywhere but I couldn't find one, the only one on taobao has only a stock.
Reason I am looking for it is because it is arguably best super tweeter(?), and i really like sonion's sound when compared to knowles.
dhruvmeena96
Headphoneus Supremus
Try making Final 2Hello Mr. dhruvmeena96,
Haha cool that you're wondering
The reason is:
My Knowles GV bass driver dies after few minutes of music, but recovers after few minutes of no music.
Similar problem to eunice.
Did anyone find an explanation for dying Knowles GV bass?
In this forum, you mentioned some reasons for that GV bass death (e.g., pressurization issues), which i liked.
(I also liked posts where something is summarized up or explained for noobs.)
Therefore I'm looking for new recipes (mainly from your kitchen
I plan to build Finale 2.
And maybe use a different HODVTEC of the broken GV.
Has anyone tried something with Knowles GU? With added tweeter for > 4kHz?
Every penny worth
If properly executed
GV and GK are not that great compared to self build iem
MISHKA2020
New Head-Fier
Hi guys. I hope to write in the right place... I'm pretty new here but have been trying to make custom ear molds for a few months now. I learned a lot from your tips and posts and thank you all for that! You are great ! I have one question ... Has anyone tried to put SHURE 215, 315, 425 and 535 drivers into custom molds ? I tried first with a simple 215 and of course after a tube of 2mm and a length longer than 15mm, the sound changes. Everything is very prominent in the range from 800hz to 2 kh. Does anyone have any experience and advice on how to extract the original sound from SE215?
Thanks in advance
Thanks in advance
BigBublik
New Head-Fier
I look at the beautiful Empire Ears Odin and ItsfitLab Fusion headphones but I do not know how they make such beautiful faceplate?
