Quickly drew up a riser. I somehow prefer it a little bit up in the air cables off the ground and better air flow to the vents below.

Feel free to improve/remix/share/print/sell… easy to modify i.e. to have a closed front with a volume knob or a display or whatever

https://cad.onshape.com/documents/fa87ae3c56ed8b3152f3bdbf/w/086ef18451fa5cecba63600b/e/6c9e2df580dfab1a7e5daeaa?renderMode=0&uiState=6a46383a696ed68c873343c6