I replaced my existing Definitive Technology UIW 83/A in-ceiling speakers and Connect:Amp with SONOS Architecture In-Ceiling speakers and SONOS Amp. My previous speakers required a 9” diameter cutout which was too big for the SONOS In-Ceiling speakers. So I designed an adapter trim and ordered 3D prints using Nylon 12 (SLS) dyed black. Attached is a photo of the installation and a link to the adapter trim STL file should anyone need to 3D print a pair. I like the small black reveal but if one prefers they can print the adapter trim in white as well.
The SONOS In-Ceiling speakers with SONOS Amp sound fantastic. They have similar timbre and so blend much better with my other SONOS players than my previous speakers; and they look great.
The trim adapter STL file is publicly accessible and can be downloaded here: TrimAdapter.STL