Spldecendant
10+ year member
CarAudio.com Elite
I have a 07 Tahoe with 2 xsd3400 upfront with a big 3 going to each with 4/0 connecting the 2. Then I have a mechman 270a alt all knuconceptz wire 2 runs of 0 gauge to the rear with 2 300 amp fuses then a d3100 in the rear this is power a lanzar opti7001d it's rated at 5100rms at 1 ohm and I have it wired to 1ohm then I have a 400rms highs amp just ran of the d3100 of the back battery. Will there be sinificant voltage drop or should I be able to stay about 12.5v?