In-Ceiling Speaker Enclosure for Recessed Lighting Fixture

thingiverse

I made these enclosures to utilize the [Tectonic Elements TEBM65C20F-8 3-1/2" BMR drivers](https://www.parts-express.com/tectonic-elements-tebm65c20f-8-3-1-2-bmr-full-range-speaker-8-ohm--297-2156) mounted in the 6" recessed lighting housings though out my (rented) apartment. With a small amplifier and a Chromecast Audio (for each speaker), I have a non-destructive way to implement in-ceiling whole-house audio. Other speaker designs linked here: https://www.thingiverse.com/thing:2608897 The brackets on the side are for adjusting the final depth of the speaker in the ceiling using M3 hardware. They sit on the integral brackets present in my fixtures, though I'm not sure how standard that design is. You will have to remove the shroud and socket-mount bar, etc. I went through a few cover plate designs, and settled on the one provided - it is meant to simply friction fit around the speaker body. The enclosure volume is, of course, limited by the space afforded in the light housing, which must also fit an E26 to Type A outlet adapter, a small DC power supply, the amplifier, and the Chromecast Audio. This is the reason for the wider base on the enclosure; it acts to hold these components above the speaker once in place. It's less than ideal, and a bit of a pain installing it all, but works well for me in the end, given the constraints. An integrated DC power supply/E26 base would make things much cleaner and easier, but I have yet to find or make one. Main body and cover print without supports, but the small height-adjustment piece will need them.