Purpose of Dual Power Inputs?

[DarkGremio 10+ year member]

I am curious what is the reasoning of two power inputs on an amp? Currently I ran one single input and subs worked perfectly. But I am curious if my performance or anything will increase if I hookup the other power input.

I tried to hookup the power cables (12V Gnd, Remote) from splicing from the current power cables because they run into both of my batteries. But I got the pos and neg wires mixed up and blew my fuses.

Bottom line what is the point of the dual power input?

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[Julian 10+ year member]

tenths

 

[DarkGremio 10+ year member]

Tenths? of?

 

[Kangaroux 5,000+ posts]

On the meter (termlab). Audibly you won't notice a difference.

 

[TheUnderFighter 10+ year member]

Getting more voltage and current supply to an amplifier you might be pushing harder. Say a 2500w amp with only one set of inputs, may be drawing more current than 1 run of 0 gauge could supply, especially if you're running the amp at half-ohm or less. OR, like my silly Mmats 2k amp which only has one 4 gauge input.

For the most part you won't have to worry about it. If you don't know what they're for, you're not gonna need them.