Enclosures for BMR ambient tweeters

This is an enclosure for the Techtonics Elements model TEBM35C10 BMR drivers. https://www.parts-express.com/tectonic-tebm35c10-4-bmr-2-full-range-speaker-4-ohm--297-216
In this enclosure they can play down to about 200Hz, but I use them only from about 1500Hz.

Edit: I also made a plate that mounts four of these into an array, tilted upwards at 25 degrees, to radiate across a wall. The STL for that is included.

BMR drivers basically spread sound in all forward and side directions. The