Summary

Needed a 4" 1.75 inch aero for a speaker enclosure I am designing. Sharing it with you guys!

This is going in a .54 cu.ft. Enclosure tuned for 42hz.

I will flush mount the female port flange to the face after routering out the 3mm depth. Then using CA Glue will attach the male side of the port to the back side of the port.