I guess using a fast acting fuse instead of a slow blow fuse may burn the fuse faster, but may not affect other electronic components. Am I right?
Ihcho
If the fuse is for a power amp it may not hold when the amp is first turned on. The initial inrush current for the power transformer and charging of the caps in the power supply could be many times the FLA (full load amps) of the amp. A slow blow fuse has a built in lag time for the initial inrush of current.