This 3D Printed Waveguide is intended for 5DR53041 tweeter (114 x 93mm, 4-1/2 x 3-5/8in) replacement in the Mirage Speakers M7-SI, M-290, M-490, M-790 and M-990.
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.