Aluminum home speaker box prototype challenges revealed

Ғылым және технология

In this video I will tell some of the engineering and manufacturing methods I have used to create my own Aluminum floorstanding speaker prototypes.
Used manufacturing methods were:
DIY own deep drawing tools and process
DIY own press forming aluminum reflex pipes. (can be seen in the rigth lower corner) They exit towards ground from the bottom plate
Aluminum Sheetmetal manufacturing
MIG and TIG welding
Upper cutter ( should have used dies to get nice round shapes around speakers, but that was done quick and dirty for the measurements)
Bolting
Soldering
I started ofcourse with wooden box to get the inner volumes in the ballbark.
Used elements were from TangBand:
TW25-1743 Tweeter
W5-2106 Mid
W8Q-1071 subwoofer
Project difficulty level: Expert
Problems in the prototypes sound and looks:
- Upper speakers distance to sides is not constant/same
- 8x12" Subwoofer does not go low enough in this current box size. Also the looks are not at the requires level. I had the cover designed to cover these speakers, but it did not work the way I wantes plus it created distorsion to the sound as it comes off from front panel level.
- box was still pretty easy to make I would like to try make even more challenging box shapes for the next one so it would be more difficult to copy the design. Its not like its needed, but because I know I can do better.
I do like to remind that I am not a professional speaker designer so the crossover design and measurements were done by a pro friend who is doing those things on more daily basis.
What speakers would you recommend to use if the reference sound quality is set to this?
www.testberichte.de/p/b-w-bow...

Пікірлер: 14

  • @WolfeKustoms
    @WolfeKustoms11 ай бұрын

    Excellent craftsmanship!

  • @WorstUsernameInDaWeb
    @WorstUsernameInDaWeb Жыл бұрын

    Its always nice to watch people with the same interest but some step and skill ahead of mine. Thx for the video. Im gonna start making my aluminum speaker tomorrow.

  • @BlueOceanDesigns
    @BlueOceanDesigns3 жыл бұрын

    The best sounding speaker is the one that sounds best for you and no other opinion on the internet really matters. I applaud the fact that you wanted to venture into the "unknown" and did things your own way and didn't go down the copy generation mentality. For me there is a difference between someone speculating about something and someone actually doing it. The only way we push boundaries is by experimenting and doing things, and so you did. We don't see pure aluminum enclosures because of material and production/processing costs. There are so many ways to manipulate and damp enclosures so I FULLY support your venture into seeing what is possible. That is where magic happens :)

  • @Thomas..Anderson
    @Thomas..Anderson Жыл бұрын

    My first impulse was to make a joke if you were ever a member of that A-ha band. But then you showed that die foe deep forming (stamping) and I thought: blimey... this guy is serious. So... have you ever thought of aluminum casting ? This way you could implement waveguide and some isogrid stiffening on the inside.

  • @dlfrestoration
    @dlfrestoration2 жыл бұрын

    Hey hope you hit your 1000 subs soon 😊😊

  • @davecarey4710
    @davecarey47102 жыл бұрын

    I wish I could have Tig welded that for this video. I wonder what a 3 cube box with a slot port

  • @JulianEdgar
    @JulianEdgar4 жыл бұрын

    Aluminum is typically not a good material from which to make speaker enclosures. As far as I know, the only successful ones made from this material have used thick-walled castings.

  • @vesatiainen9701

    @vesatiainen9701

    4 жыл бұрын

    Check out genelec or magico speakers. Genelec uses casting and magico extrusions. More and more aluminum box speakers are coming to market.

  • @JulianEdgar

    @JulianEdgar

    4 жыл бұрын

    @@vesatiainen9701 Interesting, but I remain unconvinced! Not sure why you'd pick a material that rings a lot, then have to damp it an equally great amount.... rather than start with a material that doesn't ring much. My pick is concrete.

  • @vesatiainen9701

    @vesatiainen9701

    4 жыл бұрын

    @@JulianEdgar where does the ring get started as speakers elements are basicly moving freely from the enclosure? Subwoofer frequencies are much lower where there is more energy involved.

  • @JulianEdgar

    @JulianEdgar

    4 жыл бұрын

    @@vesatiainen9701 All enclosure panels have natural resonant frequencies. These are the the frequencies at which the enclosure walls, floor (etc) will become excited when the air pressure fluctuations (ie sound waves) within the enclosure match the natural resonant frequencies of the panel. The internal damping of the material (ie how dead it sounds when struck) is a good indication of how excited the panels will get. Hit a lump of aluminum with a hammer. Now hit a similar thickness of concrete with a hammer. Which rings - and which doesn't? Now, make a spherical speaker enclosure from concrete. Stiff and non-resonant (dead).

  • @vesatiainen9701

    @vesatiainen9701

    4 жыл бұрын

    Its true that conrete is better in the sense of ringing. There are some manufacturer that makes conrete boxes, problems start to come with weigth easily. Just this aluminum one weigths around 55kg If you plan to ship them abroad or just moving it inside the house. Friend made one box from stone and it was also dead. I have used polyester resin with sand glasfiber mix in some previous projects inside the box to make it more rigid.

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