I had some 1.5” speakers on hand and wanted to use them for this project so I calculated that if I shrink your model by approximately 13-15% I could use my 1.5” dual Nd magnet Dayton Audio soeakers. the speaker sounds amazing for the small size and I’ll bet the 2” would have more bass and loudness. good luck finding quality 2” speakers that fit the square profile. I looked but didn’t have much luck except for super expensive German and danish ones. yes that’s an even smaller one using some 1”

made my own slight changes but works great

thanks I needed a quick solution