Modular Subwoofer Port – Base + Extension

This is a 3D printable tuned port (also known as a bass reflex tube) designed specifically for subwoofer enclosures. The model is split into two parts to allow for flexible use and easier printing. Part 1 – Base:The main piece, named “Base”, is 152mm (5.98") in length with an internal diameter of 105mm (4.13") and an external diameter of 110mm (4.33").It features a mounting flange at one end with an outer diameter of 145mm (5.71"), allowing for easy and secure installation on your speaker box.Part 2 – Extension:The “Extension” piece is an optional add-on that provides an additional 150mm (5.91") in length for those who need a longer port to achieve a lower tuning frequency.It is designed to press-fit onto the base. The internal diameter is 110mm (4.33"), and the external diameter is 116mm (4.57"), ensuring a snug and stable coupling.This modular design allows makers to easily adjust the total length of the port based on their subwoofer box volume and desired