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Design of next project - 3D Print

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  • Design of next project - 3D Print

    A while ago i mentioned redesigning an old school Sharp Ghettoblaster. Its been a part time design project whilst i have one of the big printers fixed. The design is true to the original size, but obviously need to look at volumes for the Visaton drivers.

    The questions i have is around the Dayton Audio charging boards and a couple of ideas around using a raspberry PI and a DA or Sure 2x50w BT amp.

    I know the board i was will charge on its own, but wondering if any have also used a buck converter down to 5v and a RPI run both. I also wasnt sure if i could use a switch to toggle between BT and an audio in to choose what i actually want to do.

    Im probably biting off more than i can chew, but do like a challenge.
    Attached Files

  • #2
    Ha, very cool! What Gen'Xer wouldn't want one of these in the garage?
    Please donate to my Waveguides for CNC and 3D Printing Project!!
    Please donate to my Monster Box Construction Methods Project!!
    Soma Sonus


    • 3rutu5
      3rutu5 commented
      Editing a comment
      The imagination is running wild on this, trying to find a spectrum analyzer that's around 300mm long and 40mm high to put at the top, then there was the raspberry pi, also looked Physical EQ....but then I want it to run off a battery, which will sacrifice internal volume lol, it really is a rubix cube

  • #3
    Considering I'm using W 130 X - 2 X 4 OHM as the woofer and it looks like it would be in a 0.13 - 0.14cuft enclosure (ea) and tuned to a F3 in the late 40's, would it be recommended to try and match a PR (or two) or go a port? Not having done any speakers over 3.5inch before I must admit I'm in virgin territory, so far I was looking at a 40mm port around 420mm long, which seems big and might chew up that internal volume? A little unsure


    • #4
      As the dual voice coil woofer is proving hard to actually model, i was considering using the PACTO design that Visaton currently uses, where they cross a FR58 around 250hz.I know it would be better to try a design myself, but have tried and failed. I think that the FR58 is in a sealed enclosure.
      Attached Files


      • #5
        Your first larger-woofer build AND a series cross-over? Cool!
        My first 2way build