3FE22 in a 1mm wall box

Faital 3FE22 TWS 1mm wall

Wanted a super lightweight stereo speaker pair for travel because as we all know those bluetooth boomboxes are an abomination, okay some sound pretty good considering the size, but you can’t beat a stereo source, no matter how much fancy reverb algorithm you throw at it.

And so it came to pass, Red translucent PETG, okay so 1mm wall is not strictly true, there are 15mm ribs, but the result is a 1.8L 200g vented box, F3 95Hz.

Together with the Faital 3FE22 driver, and 12v power tool battery 220g, comes in at ~3 pounds for the pair.

This is my first experience with the 3Fe22, and man what a beast, completely amazed by the clean rich powerful sound coming from them.

First version had the traditional hole in the cabinet, and was going to work out later what sort of grill I was going to mount on the outside, and then duh, just integrate it into the design.

Lined with Melamine cleaning sponge from Daiso, because that’s the only open cell foam I had in the house, and works brilliantly, I bet it’s what Marie Kondo uses in her speakers.

Amp is the Aiyima true wireless stereo module, it sounds really excellent.

The only addition is a power switch and a volt meter, because this PETG is translucent I didn’t have to make a window for it.

And here in action on a beach on an island with Bali in the background.
 

Attachments

  • IMG_8328.jpeg
    IMG_8328.jpeg
    318.7 KB · Views: 124
  • IMG_8343.jpeg
    IMG_8343.jpeg
    335.3 KB · Views: 128
  • IMG_8344.jpeg
    IMG_8344.jpeg
    277.8 KB · Views: 127
  • IMG_8726.jpeg
    IMG_8726.jpeg
    126.6 KB · Views: 127
Last edited by a moderator:
  • Like
Reactions: 1 user
Founder of XSA-Labs
Joined 2012
Paid Member
3FE22 is neodymium and 3FE25 is ferrite. They sound different. I think 3FE22 is a bit more refined sounding and allows more compact cabinet due to lower Qts and smaller Vas. The 3FE25 has naturally deeper extension in bass due to higher Qts.

Depending on your application - the 3FE22 is a closer replacement for 10F/8424 so good for small reflex or hornloaded designs. Whereas 3FE25 is better for larger MLTL cabinets where you want some bass.
 
  • Like
Reactions: 1 user
Nice work! I really like the 3FE22 - highly underused driver.

Are you using any BSC filter? I find 1mH and 6.8ohms a good value to get more balanced sound and deeper bass.

Which TWS amp are you using?
Not using any filters, but I'll give that go, thanks
These ones are the green Aiyima boards, Don't know the model number, but it claims to use the TPA3110
 
  • Like
Reactions: 1 user
Which version; Neo or Ferrite is the preferred choice?
The 3FE25 is 545g, which is twice the weight, so in this instance the 3FE22 is much preferred.

Oh and I used the 8ohm version because it can be tuned lower than the 4ohm, and also true for the 16ohm vst 8ohm, but I didn't want to throttle the amp that much.
 
Last edited:
  • Like
Reactions: 1 user