Mounting plate for speaker stands (Samsung HW-Q995GC + Kanto SP32PLW)

If anyone is looking for the absolutely perfect speaker stands for the rear speakers of the Samsung HW-Q995GC, the Kanto SP32PLW is an excellent choice. 
Heavy, absolutely stable, a reasonable price and they look damn good too. 
However, the two speaker mounting plates supplied are too big. 
That's why I built my own that fit the speakers exactly and look absolutely clean.

Soundbar: Samsung HW-Q995GC
Speaker stand: Kanto SP32PLW

I've printed it in PETG white (from Extrudr) without support on my BambuLab X1C.
At the top of the small window at the back you can see a small overhang, but that didn't bother me. Feel free to add tree support here of course.

Screw 1/4"-20 x ¾"