I created a big DML system and learned a lot along the way : r/diyaudio
D.M.L. Audio - The MB1 B is a stand-mount, two-way mini monitor. Our main goal was to create a small speaker that does what it does really well. The reflex port is
EV DML-1152A 2-Way Full Range Speakers W/Case #03895 (Pair) THS | eBay
How To Build DML Panel Speakers with Hidden Wall Mounts Fully Suspended - YouTube