Why wont my 150 amp fuse blow

[Anthony10111]

I got a smart 3 supposedly 3000 rms how can I possibly get that power if it isnt even blowing a 150 amp fuse 

[Dafaseles]

Fuses can take a lot more than what they're rated for short periods of time. With how dynamic music is, even putting however many amps through the fuse, the "ups and downs" of music probably keep that fuse from overheating and blowing