Kymco midi xl for u 70 amp fuse blown ,any idea does it happen a lot

SOURCE: hi ther the fuse has

The fuse blew because of excess current. The cause of the excess current is either excess volume, a short in the speaker, OR the amp has failed and is shorted to one of the power rails internally and is driving DC current out.

Replace the fuse and use a meter to check the output voltage with NO speaker connected. It should be under 1/2 volt period. If it is, then check the resistance of the speaker. The DC resistance should be a little less than the rated impedance. Otherwise if the amp is kicking out a higher voltage or blows the fuse again, have the amp repaired.

SOURCE: Blown 30 amp fuse in a 2000 f250 powerstroke 20 minutes into a drive.... Any ideas on to what would cause that to happen besides being an old fuse?

Fuse to what? don-ohio