My fuses keep blowing in my behringer mx 2442a power supply

Fuses usually blow for a good reason - because something else is wrong.
A fuse may go once if it is just a bit old but if changing a fuse twice has not solved the problem then there is some sort of electrical fault that you need to trace. It could be

• a short circuit - maybe a crack in the insulation in the cable somewhere - most likely point is where the cable enters or exits the power supply and is subject to a lot of flexing or where it joins the coil windings inside the transformer.
• too much equipment connected to the power supply overloading it
• an open circuit or failed component causing- too low a resistance allowing too much current to flow
• a cable or component somewhere in the power supply that has too high a resistance for the current to flow causing a build up of heat at the weakest point - the fuse.