The author remixed this model.
This is a remix to offer a concave speaker grille to work with armacisaac's original Rear Speaker Kit. This allows additional clearance under the speaker grille for the tweeters in 2-way and 3-way speakers. This prints much faster than armacisaac's [non-flat] grille – 9 hours vs 22 hours on my Creality Ender K1 Max. There is bit of support bulk to remove after printing. This uses the same Spacer and Tracing Tool from armacisaacs model.