[piotrus-g]

My question: What kind of mid armature do you recommend? (2xED or 4xRAB?)

2x DWFK?
But if your choice is ED vs RAB I would take ED.

 

[tomekk]

I do not do with inductors the crossowers, but with resitor (30,30 and 10 ohm potentiometers I will tune)

Check this page: https://www.head-fi.org/threads/home-made-iems.430688/page-265

Make measurements before installation. Last week I was working on a 1*TWFK + 1*CI prototype and without a mid cut-out in CI I had a mess in mid and high tones all the time. 4700 damper itself wasn't enough.

 

[Tulku1967]

Check this page: https://www.head-fi.org/threads/home-made-iems.430688/page-265

Make measurements before installation. Last week I was working on a 1*TWFK + 1*CI prototype and without a mid cut-out in CI I had a mess in mid and high tones all the time. 4700 damper itself wasn't enough.

Piotr: Many thanks!! Maybee will ED-s...

Tomekk:
I'm going to fill a 1000-1500 ohm dampers screen directly in the CI slots (this is what Harvey does) ... I did this again in a UM Pro50 rebuild ...

I think CI is basically a mid-radiator

 

[Tulku1967]

What kind of armature can you find in the Warbler Prelude?

IEM with 1 armature ... does it exist to voice of a full sound spectrum?

 

[Im1fan2nv]

I see shells with metal tubes at the output ports. I've figured out that the small is for lows and the large is for hi's. Any feedback on how long these are? How about comparisons of with and without them? How do the effect the FR? Is it worth the extra effort?
Thanks

 

[Tulku1967]

I see shells with metal tubes at the output ports. I've figured out that the small is for lows and the large is for hi's. Any feedback on how long these are? How about comparisons of with and without them? How do the effect the FR? Is it worth the extra effort?
Thanks

For JH Audio the length is 10-12 mm
I noticed that he was focusing on the sound.

 

[cyph3r]

I will be into a small 1 or two driver project soon and need your advice on which sound measurements (like frequency response) you consider most important for development?

 

[Spinnerauto]

Hi everyone. What temperature that you use for waxing ear impression?

 

[Squirg]

Hi everyone. What temperature that you use for waxing ear impression?

It seems like it depends on the kind of wax you are using, but I have been having best results around 155-160F. I just got some of the red Nice-Fit wax and I am experimenting with differnt temps. But, so far I have had much better results with the pink dental base wax I got of Ebay. https://www.ebay.com/sch/i.html?_od...l+base+wax.TRS0&_nkw=dental+base+wax&_sacat=0

 

[Firedrops]

2x DWFK?
But if your choice is ED vs RAB I would take ED.

What about BK vs ED?

 

[piotrus-g]

What about BK vs ED?

BK is very different driver. Cannot be used as straight ED replacement It has different peak placements and typically a roll-off after 7-8kHz

 

[Firedrops]

BK is very different driver. Cannot be used as straight ED replacement It has different peak placements and typically a roll-off after 7-8kHz

Is that a "good" natural roll-off if complemented with TWFK/SWFKs for highs?

 

[piotrus-g]

Is that a "good" natural roll-off if complemented with TWFK/SWFKs for highs?

Don't know. Never tired combining BK with TWFK/SWFK.

 

[Muhammad Aziz]

Hi guys, im totally newbie here. Little bit confused about choosing the best BA to pair together.
I have some reference like:

CI22955+TWFK30017
CI22955+ED29689
CI22955+ED29689+WBFK30095

Which one do you guys prefer? Or do you guys prefer to use dynamic rather than BA?
but i would like to use BA from Bellsing (倍声), considering it's hard to an expat to get the original Knowles in here (China). Thanks!!

 

[cjxj]

What you've asked is kind of like asking which one kind of ice cream everyone prefers. So much depends on your purpose in building and what you will use them for. If your purpose is to mainly save money, do yourself a favor and buy a nice set ready made. I'm far from an expert, but after 6 months of tinkering with these things, I've spent enough money to have bought about 3 sets of nice CIEM's from one of the custom manufacturers. However, if your purpose is to learn and tinker, then I'd recommend you start with one of the well documented combos (in this thread) based on one of the first two options you listed. I found that if you stick to the recipes, they will sound pleasing enough, and give you a good reference point for your next build. Better yet, start with a pre-made GK or HE to make it easy. Although I'm making progress, I will say that most of my early recipe tweaking with various passive components and dampers did not make things better....;>) . Regarding the Belsing drivers, I've built a CI/ED set using the Belsing branded versions of the drivers and I was happy with the result. However, you mention that you're in China. From what I can see, you should have easy access to whatever drivers you want, including Knowles and Sonion.

Hi guys, im totally newbie here. Little bit confused about choosing the best BA to pair together.
I have some reference like:

CI22955+TWFK30017
CI22955+ED29689
CI22955+ED29689+WBFK30095

Which one do you guys prefer? Or do you guys prefer to use dynamic rather than BA?
but i would like to use BA from Bellsing (倍声), considering it's hard to an expat to get the original Knowles in here (China). Thanks!!