This is the final prototype design for the Retro PC Subwoofer project and is by far the best design in the series. Unfortunately, I ran into massive port noise or "chuffing" at extremely low frequencies and decided to 3D Print a custom port to see if that resolves the issue. Towards the end of the video I dive into why this was a problem to begin with.

Hardware Asylum
https://www.hardwareasylum.com