Museum of the Game® & International Arcade Museum® Forums

Hi all, was gonna make a working 3d printed vintage boombox based off of the old Atari 720 arcade game marquee. I'm not an audio guy so was wondering if you could help me with the design. I'm not looking for high fidelity but if it is something that can be easily implemented to improve the sound, would appreciate some pointers. I'm going to 3d print it so a lot of things can be easily implemented. I was going to use a pair of 8" GRS Full Range speakers that are pretty cheap on Parts Express for the main speakers.
  1. What would these openings, circled in red, used for in the real world? Venting? Or is there a tweeter or other speaker behind there?
Screenshot 2025-08-12 130051.png

2) Would you build inside the design, enclosed chambers to isolate each of the large 8" speakers? Or would it not make a difference. I saw in some diy boombox designs, people would isolate each speaker with some interior walls.

3) Would you put polyfill in the open interior spaces inside?

4) Anything else you would recommend?

Thanks!
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