I wanted to create a way for my amplifier to sit on top of my desk-mat without getting too hot. I also had the special need to accommodate my monitor stand. The third file does both, however because it is unlikely that anyone else will need the exact solution I did, I also included a stand that will prevent wobble, increase airflow, and keep my amp/dac combo in place. Hopefully it works for you as well. I also included the print for small feet that can be added to bring the stand itself a few mm of the ground. You don't have to use them, but if the print gets warped somehow, it could be a solution to prevent wobble.

Cheers.