[Aldo40]

My $99 3D resin printer got here, anyone have some 3D models, stuff like DD to tube adapters, multi BA adapters, shells? Anything really for a test print, googling now.

i can give the community universal hulls that I made under 360 fusion. For the adapters the dynamic driver,v it is necessary to make them yourself because it depends on the dimensions, but it is much less complicated to make than the universal shell

 

[mattmatt]

My $99 3D resin printer got here, anyone have some 3D models, stuff like DD to tube adapters, multi BA adapters, shells? Anything really for a test print, googling now.

You can use the one I made in page 883. There's a link to a thingiverse model.

 

[Aldo40]

renommer shell.txt ----- shell.stl

 

[Wgibson]

Is that Sonion E50DT worth getting?

Edit: for another few hours, aliexpress sale is going on, soundlink has some discounts (their prices are already good, so usually no coupons or discounts from them.)

Getting some 2389D, and maybe E50DT... much better than a knowles 30095 or two?

 

[kkugel]

Is that Sonion E50DT worth getting?

Edit: for another few hours, aliexpress sale is going on, soundlink has some discounts (their prices are already good, so usually no coupons or discounts from them.)

Getting some 2389D, and maybe E50DT... much better than a knowles 30095 or two?

It is wayyyy better than any knowles tweeter imo. Very very easy to get good extension. How many 2389 you plan on getting?

 

[Aldo40]

The E50 has a nice extension, it must be ammortir, personally I put it a damper of 1500 ohms

 

[tomekk]

aliexpress sale is going on, soundlink has some discounts (their prices are already good, so usually no coupons or discounts from them.)

it seems to me that on aliexpress driver prices have gone up in the last weeks 20-30% so making iems at current rates is an expensive hobby in 2021.

 

[mattmatt]

Anyone can compare the e50 to swfk?

Graphs would be great.

 

[kkugel]

@mattmatt See how much further E50 extends. You can cut down those 2 early peaks easily electronically and have close to perfect 18k instead of 14k extension

 

[mattmatt]

What are these graphs? Bottom SWFK?

Problem with Knowles' graphs. Sometimes they aren't standardized. So comparing them them via spec sheets is not comparing them side by side equally. Best way is to measure them side by side from the same jig.

@mattmatt See how much further E50 extends. You can cut down those 2 early peaks easily electronically and have close to perfect 18k instead of 14k extension

 

[Wgibson]

Knowles even has two different styles of "datasheets." One looks like marketing department, one looks like it is from the factory.

IMO neither of them give useful info above 10k, some of them cut off low at 100hz... Always a bit of a question mark until you get a pair and measure on your own setup.

 

[mattmatt]

Knowles even has two different styles of "datasheets." One looks like marketing department, one looks like it is from the factory.

IMO neither of them give useful info above 10k, some of them cut off low at 100hz... Always a bit of a question mark until you get a pair and measure on your own setup.

Exactly my point. It's hard to compare just by data sheet alone.

 

[Aldo40]

If I have a moment I can measure both. For the Knowles measures I also noticed that they were often different. After there are several SWFK, I must have at my disposal 3 different reference to SWFK the classic 31736 which is not ammorti, the 32254 and the 32255 which are ammorti. Despite the very linear Knowles curve of the 32255, in reality there are still higher peaks than on the manufacturer curves. All this to tell you that nothing will replace our own curves in real situations.
measuring 28uap or series 33 sonion and the builder curves are very different also

 

[Xymordos]

If I have a moment I can measure both. For the Knowles measures I also noticed that they were often different. After there are several SWFK, I must have at my disposal 3 different reference to SWFK the classic 31736 which is not ammorti, the 32254 and the 32255 which are ammorti. Despite the very linear Knowles curve of the 32255, in reality there are still higher peaks than on the manufacturer curves. All this to tell you that nothing will replace our own curves in real situations.
measuring 28uap or series 33 sonion and the builder curves are very different also

Ooh would you mind sharing the graphs of the 3 SWFK variants on your rig for comparison?

 

[Aldo40]

Ooh would you mind sharing the graphs of the 3 SWFK variants on your rig for comparison?

yes I can do this in a few days, it will take me a little while I have projects in progress to finish