Figure about 12 watts per 10 amp fuse rating give or take 20%. The amp looks to be fused with a 120 amp maxi Ive seen amps rated at 500 rms with. 60 watt amp do 1,200 watts rms (Alpine mrv500) on a amp Dyno if your looking for about 2000 watts rms and.dont want to spend much here are a few...