I made the noise damper for the ventilator sound from my X1 and think that the noise can more reduced with a “gun” sound damper form.
I had print the noise damper from Printables: https://www.printables.com/model/344902-eds-powerfull-magnetic-bambu-lab-x1-p1s-full-ams-h
and draw my extra damper with Tinkercad.com!
I hope it will help by your printers!
Chris