How do i ask a question to no one in particular

[Tank#]

I would like to know if anyone knows how to install an old school opti 2500 that has 2 power wires and 2 grounds?? Plz help

[jmpbama92]

There are really two main reasons for 2 power and ground connections. The first reason is for current or amperage purposes. It allows the amp to draw more current without the possibility of overheating the wire. The second reason is to keep the price of wire down for the consumer. Running two 1/0 awg cables is alot cheaper than running one 4/0 awg cable. I am sure there are other reasons out there, but this is my belief and opinion. I need more info about your build. I need all your amp's size, model, and amperage; dsp's, crossover, or equalizer; and speaker's size, watts, and model. This is so I can tell you exactly how it can be set up.

[jmpbama92]

What gauge wire are you using? Some info for you, you are using a 2500 watt amp. This means you will be needing 205-210 amps of current for great efficiency. In order to get this amperage, you can use 4/0 to 4 gauge wire. Since you have two power and ground inputs, I would run 1/0 wire from battery to a distribution block (one with fuses preferably) then run 2 or 4 gauge wire from distribution block to amp. Now, I would use two 125 amp fuses either for both power wires. You can have two separate ground points for the ground ( use equivalent wire as power). Also, if you run one or two separate power wires from the battery you need one or two inline fuses 18 inches from the battery (if one add all the watts from each amp and divide by 12 then get the closest fuse to this amount or if two wires divide above amount by 2 and get two fuses closest to that amount).