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<blockquote data-quote="MECHMAN" data-source="post: 7869686" data-attributes="member: 595065">A 60 amp alternator really is only capable of sustaining 840 watts, period.&nbsp; Also, the vehicle itself is going to require as a bare minimum, 25 amps to run ignition, fuel pump, etc...&nbsp; This means that you actually only have about 35 amps available to power the system.&nbsp; If it wern&#039;t for the battery(s), the amp would shut off imeadiately.I would tell you to test the theory by removing the battery from the equation, but an alternator physically will not function without being connected to some kind of battery.I guess the easiest experiment would be to have your friend with the 2500 watt system and 60 amp alternator play his system at full volume for more than 5 minutes, with a digital multimeter connected to the battery terminals.&nbsp; The longer it plays, the lower the voltage will drop.&nbsp; If he plays it long enough, (depending on if the amp has low voltage protections) eventually the battery voltgage will fall down far enough that the engine shuts off.&nbsp; (about 9 volts or so, depending on the vehicle)a 60 amp alternator on a 2500wrms is not realistic for listening to the system for any reasonable amount of time.</blockquote>

[QUOTE="MECHMAN, post: 7869686, member: 595065"] A 60 amp alternator really is only capable of sustaining 840 watts, period. Also, the vehicle itself is going to require as a bare minimum, 25 amps to run ignition, fuel pump, etc... This means that you actually only have about 35 amps available to power the system. If it wern't for the battery(s), the amp would shut off imeadiately. I would tell you to test the theory by removing the battery from the equation, but an alternator physically will not function without being connected to some kind of battery. I guess the easiest experiment would be to have your friend with the 2500 watt system and 60 amp alternator play his system at full volume for more than 5 minutes, with a digital multimeter connected to the battery terminals. The longer it plays, the lower the voltage will drop. If he plays it long enough, (depending on if the amp has low voltage protections) eventually the battery voltgage will fall down far enough that the engine shuts off. (about 9 volts or so, depending on the vehicle) a 60 amp alternator on a 2500wrms is not realistic for listening to the system for any reasonable amount of time. [/QUOTE]

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