The file 'TPA3116D2 Audio Amplifier Box 3D Printer Model' is (stl) file type, size is 726.9KB.
Just added fillets on all the edges and tags for the knobs.
i've used the step file on the original post and modified on fusion 360
Credits to the original model: https://www.thingiverse.com/thing:2707051
Amp2.1_Body.stl | 2.6MB | |
Amp2.1_Top.stl | 1.0MB |