So im finally ordering my dream system for my 2003 Dodge Dakota Crew Cab, Its gonna consist of 2 15" d1 SSA Icons in a box approx 8cubic feet tuned around 28hz (will be getting someone on the forum to design it. a Crescendo BC2000D, and a Kicker KX600.4 for my Hertz Hsk components, I know I need some upgraded electrical, so far Big 3 Is done in 0 guage. My truck can fit a group 27 battery but not 31 will the D2700 be adequate? alternator is stock 136 amp. Might end up getting Singer 250a but budget isnt quite ready to fork out that kinda cash. Basically I will be running around 2000 rms after rise and having speakers at 4 ohm. Is this way underkill or will it maybe be enough for now? It will be my DD with occasional demo and cranking it occasionally. Will be ordering this from SSA Tomorrow if I get some good answers. Thanks