Bought this mixer with the intent to put it into one of the lightweight Thomann rack cases: <a class="article link" href="https://www.thomann.de/fi/thomann_rack_case_4u_shallow.htm">Thomann Rack Case 4U Shallow</a>
Turns out the holes of the front panel don't match raster width - either the upper or the lower pair of holes match, the two others land in between to threads. To add insult to injury, if you try to mount it either all the way up or down, none of the holes will meet a mounting thread. The mixer has rubber bumper feet pre-installed that prevent mounting in cases with flush bottom and variable rails.
Thomann should revise the drill plan for the front panel and supply optional self adhesive rubber feet instead of pre-Installing them.
Or just not call it "rack" mixer anymore.
Unfortunately I bought it precisely for a rack.