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Bronze Member Username: Cptmorgan89Post Number: 15 Registered: Mar-06 | hi there, i recently bought a alpin mrp-m450 amp and today when i turned it up, the fuse that is on the power line between the positive battery terminal and the amp blew. Now, is this only because the fuse was a 20 amp and in the manual it says to use a 40 amp? or do i have some sorta of a problem that i should be trying to fix with my wiring? thanks! |
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Gold Member Username: TjmutlowPost Number: 1640 Registered: Sep-05 | try a 60amp fuse and recheck all wiring prior to installing new fuse. |
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Bronze Member Username: Cptmorgan89Post Number: 16 Registered: Mar-06 | Try a 60amp fuse? i was always under the understanding that you should have a fuse rated at or a little under what the amp says. I believe that the wiring is ok. The wiring kit that i bought was rated to handle 550 watts. |
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Gold Member Username: TheelfkeeperStockbridge, GA USA Post Number: 1362 Registered: Feb-05 | 550 watts / 12 volts = about 46 amps so of course you'll blow a 40 amp fuse if max current is pulled. that doesn't take into account for amp class effiency either. i'm sure there are other factors as well. a 60 amp will be fine. |
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Bronze Member Username: Cptmorgan89Post Number: 17 Registered: Mar-06 | i think that amp is 14.4 volts. Im a noob at this stuff and im still learning so correct me if i am wrong. http://www.crutchfield.com/S-CXYVoV5WiMN/cgi-bin/ProdView.asp?g=120&id=features_ and_specs&i=500MRPM450#Tab |
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Bronze Member Username: NissankickerGrambling, LA USA Post Number: 28 Registered: Mar-06 | 60 - 120amp fuse will solve that problem! |