Hey guys, I'm at a crucial point in putting my system together, choosing my subs. Right now I'm trying to figure out what sub setup I need. Two setups I really like are one FI bl15v3 in a 4 foot cubic box. I still like the 2 AB XFL's in a 2.5 per sub box as well. I'm not dead set on anything yet, so any suggestions would be appreciated. Budget $350, 3000 rms pushing it, looking to get loud and clear, lows are a must.