Back Horn Speaker - 2.75"

I love the design Back Horn Speaker V2.0 (https://www.thingiverse.com/thing:4668173) from guppyk and I had some old speakers from Creative P5800, so I design this case based on guppyk's design.Should work with any 2.75" speaker. At the back I add a space to install this https://mauser.pt/catalog/product_info.php?cPath=324_2395_1252&products_id=011-0635