This 3D Printed Waveguide is intended for 5DR53040 tweeter (130 x 105mm, 5-1/8 x 4-1/8in) replacement in the Mirage Speakers M1, M3, M5, M7.
You can use this Waveguide to instal the Dayton Audio DC28F-8, DC28FT-8 and DC28FS-8 in the above mentioned Mirage Speakers.
This is meant to be a direct replacement for the original Mirage tweeters.
You just need to purchace the Dayton Audio DC28F-8, DC28FT-8 or DC28FS-8 and remove the original faceplate and install the MIRAGE DC28F ADAPTER waveguide.