Pelicans

Hello friends.I am just getting into car audio and need a few suggestions on what by best bet would be for my beginner audio system. I really dont want to spend more that 600$. I would actually like to spend less than that. I want something that slams fairly hard but not break budget. Here is what i have so far. Tell me what would be the best. Or add something that I dont already have. Thanks everyone. Keep in mind. This is for a car that i do not yet have(but am hoping for in the near future(next few months).Im not concerned about the head unit right now. Just the essentials. Subs(12"): Fi SSD, Kicker CVX, Alpine Type-R, Amp(this is where im stuck): Alpine MRP-M500, Rockford Prime 500.1, Kenwood KAC-9104D, Hifonics Brutus BRZ1200.1D(really stretching the price. last resort) Box: It will be ported 1.8 cu^3 In a perfect world I would like the price of the sub and amp to be around 400 to leave a little room for everything else. Thanks