This was a fun and challenging build!

Full gallery here.

I ordered some cheap single board amps and power supplies from AliExpress and used a DSP so each speaker (mid/tweet/sub) has their own dedicated amp and fine tune control ability for the frequency drop-offs, gain, etc.

They sound amazing!

    • roblarky@beehaw.orgOP
      link
      fedilink
      English
      arrow-up
      2
      ·
      1 year ago

      I made the sub use a transmission line for porting, which you can see in the full gallery.

      This gives it a really low frequency response, but takes up a lot of room.

      • LemmyAtem@beehaw.org
        link
        fedilink
        English
        arrow-up
        1
        ·
        1 year ago

        Oh, gotcha. I don’t know the first thing about building/wiring audio, I just haven’t seen a sub with a cabinet that tall before! It looks great under the desk in your setup.

  • luciole@beehaw.org
    link
    fedilink
    English
    arrow-up
    2
    ·
    1 year ago

    Impressive and inspiring! Thanks for sharing.

    My kid made some Bluetooth speakers at school in a technology workshop some days ago! They sound pretty bad. 😅 But it got me thinking how satisfying it must be to really take the time to build some nice speakers. That would be a step up in complexity from PC building for sure.

    • roblarky@beehaw.orgOP
      link
      fedilink
      English
      arrow-up
      1
      ·
      1 year ago

      If he enjoys electronics and music, then I definitely recommend encouraging his journey into this direction! I would be okay with you asking questions in this thread if you need any help/guidance/resources.

  • CadeJohnson@toot.cat
    link
    fedilink
    arrow-up
    1
    ·
    1 year ago

    @roblarky I made my own TV sound bar with exciters. The challenge was getting the smart TV to give up audio signal to my “unauthorized device”, more than any difficulty making the sound bar produce audio.

  • DontNoodles@discuss.tchncs.de
    link
    fedilink
    English
    arrow-up
    1
    ·
    1 year ago

    Congratulations on your cool build! I keep drooling on these implementations and i hope I’ll muster the courage to build one for myself someday. Youtuber DIYPerks has posted a cool build https://www.youtube.com/watch?v=XEspOD1NHr0) very recently using 3D printing and plaster of paris that seems to have a great response. Another DIY youtuber ‘Tech Ingredients’ has some very innovative approach using exciters mounted on ceiling panels. https://www.youtube.com/watch?v=GslJ8Hf4WwE is just the latest of his videos in the series where he demonstrates the thing but the other videos in the same series are very informative.

    • roblarky@beehaw.orgOP
      link
      fedilink
      English
      arrow-up
      1
      ·
      edit-2
      1 year ago

      I tried the exciters, it was neat…but not great sound fidelity. But still a fun little concept which definitely has uses.

      • SenorBolsa@beehaw.org
        link
        fedilink
        English
        arrow-up
        1
        ·
        edit-2
        1 year ago

        I managed to make a set of panels sound pretty nice with some DSP, naturally, yeah there’s just too many modalities to deal with though they can be greatly reduced with tweaking exciter positioning, size, and corner radii. was a fun few weekends for me at least. Sounded good with jazz, very natural room filling sound.