Ok, so we assume that amp can draw 180 amps for a grand total of up to 6 minutes at a time with 4 minute rests for the fuses to cool down. That's still not enough current draw to make 3000 watts unless you're pushing 16.6 volts and 100% efficiency (word: impossible).Just because it has 90 amperes worth of fuses, it doesn't mean it's limited to 90 amperes ... Many fuses can take double their rating for several minutes ...
But, if you knew you had an amp that was going to draw an average of 180 amps at full tilt, why fuse it for only 90 amps?
